The Pacific War - week by week

Last time we spoke about the ongoing battles of Peleliu, Angular and Operation Ichi-Go. On September 23, Colonel Venable's regiment struggled to breach Lake Salome's defenses, leading to tactical changes and propaganda attempts to force Japanese surrender, which ultimately failed. The American command underestimated Japanese resolve, resulting in heavy bombardments and a strategic advance. By September 26, American forces had divided Peleliu and isolated Japanese defenders, facing fierce resistance but making significant progress. On September 27, 1944, Company F secured two ridges in Peleliu but struggled with Japanese forces entrenched in caves, halting progress. Despite controlling the northern shore, Marines faced persistent underground resistance from skilled Japanese miners. Meanwhile, the 5th Marines captured Hill 3, Ngesebus Island, and Radar Hill. In October, Japanese offensives continued against minimal resistance.

This episode is the Japanese Triumph in China

Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more  so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945. 

In our previous episode, General Mueller’s infantry on Angaur had driven Major Goto’s isolated forces into the Romauldo Pocket by October 1. After this victory, it was decided to shift away from costly full-scale infantry assaults. Instead, tanks, mortars, and artillery were deployed to target the remaining enemy positions directly. On 6 October artillery and mortars undertook an especially heavy bombardment. From 0700 to 1030, 155-mm. howitzers fired at especially chosen targets, including a suspected Japanese observation post, while 105-mm. howitzers, 4.2-inch mortars, 81-mm. mortars, and 60-mm. mortars laid concentrations on the flanks and rear of the remaining Japanese-held area to prevent any Japanese from escaping. At 1030 the artillery and mortars switched to smoke shells to blanket the Japanese area and at 1035 these weapons ceased fire.

Following the bombardment, two companies were dispatched to feint attacks on the Japanese flanks, aiming to force them out of their fortified positions. The defenders, deceived by the ruse, were then subjected to another intense artillery and mortar barrage, which inflicted significant casualties. Additionally, in the afternoon, a major concrete and steel emplacement, likely serving as Goto's command post, was uncovered and destroyed by direct fire. With the enemy defenses considerably weakened, infantry operations resumed, focusing on sniper teams, small patrols, ambushes, and booby traps to encircle the remaining Japanese forces and cut off their supply and escape routes. Over the next few days, the Americans also rescued 183 captive natives during the final stages of their assault. 

The Japanese had under their control in the final pocket a number of Angaur natives, three of whom had managed to make their way into the 322nd Regiment lines after a surrender broadcast on October 1. These related stories of hardships suffered in caves where the Japanese had kept them closely guarded and also told the 322nd that more natives were being held in the northwest pocket. First attempts by native volunteers to lead some of the others out were unsuccessful; but on October 8,137 more natives made their way out of the pocket to an area where elements of Company B, 306th Engineers, were working. The next day, three native volunteers led 90 more out of the pocket. About 1/5 of the total of 183 natives rescued from the Japanese needed extensive medical attention and all the rest were suffering from malnutrition. The healthier ones rebuilt their own village and some were ultimately used as labor on various projects at Angaur.

On October 13, a coordinated attack was launched, with the 1st Battalion advancing from the west and the 2nd Battalion pushing from the north and northeast. Despite fierce resistance, by October 18 the Americans had successfully compressed the remaining Japanese into a pocket approximately 100 yards long and 50 yards wide. The following night, Major Goto was killed, and by October 21, the last pockets of resistance were eliminated.

The engagement ended two days later when the Americans realized they had eliminated nearly all the Japanese troops, with only a few stragglers remaining. By the conclusion of the Battle of Angaur, approximately 1,300 Japanese soldiers had been killed, and 45 were captured. The Americans, on the other hand, suffered 264 men killed and 1,355 wounded, primarily from the 322nd Regiment. To be more specific the 321st Infantry's part in the operation had cost that regiment 26 men killed and 135 wounded. The 322d Infantry, which fought longer and against stiffer opposition, lost 211 men killed and 772 wounded. 

Despite the heavy losses, capturing Angaur proved crucial in securing the Palaus and removing the island group as a threat to Allied lines of communication across the western Pacific toward the Philippines. Airdrome construction on Angaur was begun on 20 September, F plus 3, by the 1884th and 1887th Engineer Aviation Battalions. The first plane, a C-47, landed on the field on F plus 28, 15 October. Four days later two 6,000-foot landing strips were completed and work on taxiways, gasoline storage, and other air-base installations was well along. Air-base construction on Angaur presented difficult problems. There was available no conveniently located Japanese airfield which the Allies could repair, improve, and expand. Instead, the work had to begin at the beginning. Jungle had to be cut away, swamps filled, and rough terrain leveled. There was no hope that an airstrip could be prepared in three or four days as had been the case on many other islands in the Pacific. The completion of two 6,000-foot runways by 19 October, F plus 32, represented a considerable accomplishment. In defending Angaur, the Japanese lost a well-equipped, highly trained, and well-led infantry battalion. While this force might have been more effectively deployed elsewhere in the Palaus, it succeeded in its mission of delaying the American advance. 

Meanwhile, General Ishii of the 32nd Division decided to reinforce the limited Japanese presence in Morotai to hinder the development of an enemy airbase capable of supporting an assault on the Philippines. Consequently, three temporary raiding detachments from the 10th Expeditionary Unit and the 211th and 212th Regiments were formed, with the 210th Regiment preparing a battalion as a follow-up force. On the night of September 26, Ishii’s reinforcements began their movement to Morotai in barges, with two detachments successfully landing near Tilai and the other near Cape Posiposi despite interference from Allied PT boats. Enemy patrols around the island's perimeter blocked the use of coastal tracks, forcing the reinforcements to navigate through dense jungle.

As the concealed Japanese raiders made their way toward Major Kawashima’s main force in the Pilowo-Sabatai River area, the 3rd Battalion of the 210th Regiment landed in the Boesoboeso sector on October 9. The raiding detachments finally joined up with the 2nd Provisional Raiding Unit on October 20. Without waiting for the 210th battalion, Kawashima initiated a series of new infiltration raids, some of which reached the airfield itself. Although these reinforcements created some disruptions by harassing Allied outposts, they did not significantly impact the situation at Morotai. This was due to high disease rates among the reinforcements and the inability to deliver enough supplies through the Allied air and naval blockade. General Anami decided more decisive action was needed to prevent the enemy from utilizing their airbase effectively. He instructed Ishii to deploy as much force as possible to Morotai to destroy the enemy. In response, Ishii planned to send additional reinforcements, including the main forces of the 210th and 211th Regiments and the 18th Shipping Engineers. By November 16, approximately 1,900 troops successfully landed south of Wadjaboela, with Colonel Kisou Ouchi taking command of all Japanese forces on Morotai. Raiding activities intensified in December, but with the new year, American torpedo boats further tightened the blockade, making it impossible for the 32nd Division to supply the ammunition and rations needed for a major offensive. Unable to dislodge the enemy from Morotai, the Japanese eventually had to withdraw to the center of the island, where they remained until the end of the war.

The most notable Japanese response to the Allied landing was a series of frequent but mostly ineffective air raids. The first raid occurred on September 16 when a solitary enemy aircraft dropped three bombs on the Red Beach area, causing no damage. Between September 15, 1944, and February 1, 1945, General Sudo’s 7th Air Division conducted 82 raids on Morotai, involving 179 sorties. The initial 54 raids caused minimal damage, with only twelve Allied soldiers wounded by October 4. However, the later raids resulted in 42 Allied aircraft destroyed, 33 damaged, 19 men killed, and 99 wounded. Despite these efforts, Morotai was successfully developed into a crucial base for the return to the Philippines. In Bougainville, with General Griswold’s 14th Corps initially slated for the Leyte invasion, efforts were made to replace it with the Australian 2nd Corps. Although Griswold’s corps would not participate in the October 20 operation, advance elements of General Savige’s headquarters landed on October 6 to facilitate the transition. By mid-November, the 7th Brigade had relieved the 129th and 145th Regiments, and on November 22, Savige officially took command of Allied operations on Bougainville. By December 12, the replacement of American frontline troops by Australians was complete, and with only a few service personnel remaining, all American troops had departed by February 1, 1945.

Despite having 30,000 men—though always short on heavy equipment and shipping—Savige's forces were considered sufficient to continue monitoring the Japanese and defending the perimeter around the airfields from any potential counterattacks. However, General Blamey disagreed with this approach and preferred a more aggressive strategy. He wanted his troops to actively seek out and destroy the enemy by patrolling deep into Japanese-held territory, targeting supply areas and bases to starve and eventually annihilate the Japanese garrisons. This shift in strategy signaled the start of a new offensive phase in the Bougainville Campaign. At the same time, attention shifts to North Burma, where the Allied campaign continued after the victories at Myitkyina and Mogaung. However, the strained relationship between General Stilwell and Chiang Kai-Shek was approaching its breaking point. Confronted with the impending loss of Guilin, Stilwell persuaded President Roosevelt to issue an ultimatum to Chiang, threatening to cut off American aid to China unless Stilwell was given full command of all forces in China. Chiang, perceiving this as an attempt to dominate China, countered by demanding Stilwell's immediate replacement and welcoming any other qualified American general. As a result, on October 19, Stilwell was recalled and replaced by Major-General Albert Wedemeyer by the end of the month. The China-Burma-India Theater was then reorganized: Lieutenant-General Daniel Sultan took over the India-Burma Theater, while Wedemeyer assumed command of the newly established China Theater. However, Wedemeyer would only serve as chief of staff to Chiang, not taking effective command of the Chinese forces.

Thus, no American officer would be held accountable for the loss of eastern China. Nonetheless, this represented another significant diplomatic victory for Chiang Kai-Shek, though it would be his last for many years. However, it also marked the end of his relationship with Roosevelt, who had previously championed China's and the Generalissimo's interests. Meanwhile, upon taking command, Wedemeyer faced open dissent among the Chinese Nationalists, with local commanders in eastern China on the verge of insurrection against Chiang’s regime, as he had refused to supply arms to those defending against the Japanese advance in Operation Ichi-Go. 

There were many detailed reports that the east China commanders bitterly resented the Generalissimo's failure to support them. When Hengyang fell on August 8, Chinese claiming to be emissaries of these men presented to American authority a plan for a separatist regime and pleaded for American support. Unknown to the Americans, Chinese making identical representations had been negotiating with the Japanese since the winter of 1943-44. Intelligence reports were received at US headquarters to the effect that the Generalissimo's attitude toward the east China campaign reflected an understanding between him and the Japanese under which they would leave him undisturbed in southwest China if he in turn would not interfere while they took the airfields that presented so obvious a menace to the Japanese homeland. In 1951 a group of senior Japanese staff officers of China Expeditionary Army were interrogated on the question of Sino-Japanese relations in 1944. They denied that there had been any understanding between the Japanese and the Chinese Central Government. Two of them, Lt. Cols. Yoshimasa Okada and Yoshio Fukuyama, stated that an agreement was reached between the Japanese 23rd Army at Canton and the local Chinese commander, General Yu Hanmou, in February 1944 under which General Yu agreed not to disturb Canton when the Japanese marched north from it. Yu kept his word, according to Okada, even though the Generalissimo was ordering him to attack Canton. The Japanese officers agreed among themselves that there had been extensive contact with dissident Nationalist commanders in southeast China, and stated that through many channels they had sought to inform the Chinese that the east China drive offered no threat to them, but only to the US airfields.

One of Wedemeyer’s key objectives was to prevent China from fragmenting into warring factions. Additionally, he observed that air transport was delivering supplies to China at unprecedented rates, with 35,131 tons arriving in October 1944—four times the amount sent to support Stilwell in October 1943. The strength of the Allied forces in northern Burma and the weakened state of the Japanese meant that time was on Wedemeyer’s side; each day China remained an active belligerent bolstered the prospect of significant American supplies soon being available. Consequently, his mission involved continuing support for General Chennault’s 14th Air Force, General LeMay’s 20th Bomber Command, and air transport over the Hump; further training and advising the Y-Force in Yunnan and the Z-Force in eastern China; and assisting the Generalissimo with military operations against the Japanese. 

Speaking of Chennault's 14th air force, by November 1944, they now had an average strength of 398 fighters, 97 medium bombers, and 47 heavy bombers. In that same month the Fourteenth received 13,578 tons of supplies flown in over the Hump, of which 9,357 tons were gas and oil. From the Kunming airfields, the China Wing of the ATC flew these supplies to Chennault's forward fields, this intratheater transport being of course a charge on Hump tonnage. The apparent crisis in east China made it seem advisable to use all available Chinese trucks for concentrating the Chinese for the defense of Kunming; the quartermaster truck companies of the SOS were not by themselves enough to support the Fourteenth Air Force. These resources of air power, unimpressive in contrast to what Allied commanders had in Europe or the Pacific, but a good deal more than the Japanese had in China, were divided among two composite wings--the 68th and 69th--the 312th Fighter Wing, the Chinese-American Composite Wing (CACW), and the 308th Bombardment Group (H). An example of Chennault's flexibility, the 68th Wing had three fighter squadrons assigned, with bombers attached as the mission required. The 69th had four fighter squadrons and three medium squadrons. With headquarters at Kunming, it was shifting its attention from the campaign in Burma to the defense of Kunming against a Japanese attack from the south or southeast. The Chinese-American Composite Wing, headquarters at Peishiyi, had two fighter groups and one bombardment group. The 312th had two fighter groups (50 P-47's, 60 P-51's, and 6 P-61's), a total of five squadrons, protecting the B-29 fields at Cheng-tu.

After the air effort and the attempts to move tonnage to the airfields and to the troops, the remaining US project in China was liaison with and training and observation of Chinese troops. On the Salween front, liaison and technical advice was given in the forward areas, while troop training continued in the rear. In east China, the reluctance of the Chinese to attempt a stand after Hengyang's fall on August 8 led to the withdrawal of almost all the Americans who had tried since January 1, 1944 to train a second 30 Divisions in east China. The so-called Z-Force Operations Staff that remained comprised an observer group with the headquarters of the Chinese 9th War Area and a liaison team of 28 under Col. Harwood C. Bowman in the city of Liuchow. This handful of Americans, in the first months of Wedemeyer's command, sought to give technical aid to the Chinese defenders of Guangxi while sending a flow of information back to theater headquarters in Chongqing. They provided air-ground liaison, supervised demolitions, helped distribute the 500 tons of munitions flown into east China in late October 1944, and helped with administrative and logistical matters. The remaining 625 men of Z-FOS, including the headquarters, were in Kunming, their future mission dependent on Wedemeyer's estimate of the situation.

While these events were unfolding, Allied forces in northern Burma were preparing to launch an offensive with six divisions to eliminate the remaining Japanese presence in the region and establish a new supply route to China. Following the capture of Myitkyina and Mogaung, efforts were underway to organize two new Chinese armies, while experienced Chinese divisions continued their rigorous training in anticipation of resuming their advance southward. As the new commander of the Northern Combat Area Command and the Chinese Army in India, Sultan had the New First Army, under General Sun Liren, included the 30th and 38th Divisions. The 38th Division had been engaged since 30 October 1943, and had previously taken a creditable part in the First Burma Campaign of 1942. The division had been trained, re-equipped, and brought up to strength at Ramgarh Training Center in Bihar Province, India. Its sister division, the 30th, was also Ramgarh-trained. Its 88th and 89th Regiments had fought at Myitkyina. There was also New Sixth Army consisting of the 14th, 22nd, and 50th Divisions, commanded by General Liao Yaoxiang. The 22nd Division had fought in the First Burma Campaign, then been rebuilt at Ramgarh. It had been in action since January 1944. Lastly there was General Festing’s 36th Division, and the recently-formed 5332nd Provisional Brigade at his disposal. 

Current plans called for brigading the 1st Chinese Separate Infantry Regiment, which had been trained at Ramgarh in long-range penetration tactics, with two American regiments, the 475th Infantry and the 124th Cavalry. The combined unit would be the equivalent of a division, but would have the designation 5332d Brigade (Provisional). To carry out the project, the 5332d Brigade (Provisional), known later as MARS Task Force, was activated 26 July 1944. Brig. Gen. Thomas S. Arms assumed command the same day. The activating order provided for most of the brigade's subordinate units to be attached to it as they arrived in India or were activated--as of 26 July the brigade was still very much in the preparatory stage. Thus, the 475th Infantry Regiment (Long Range Penetration Regiment, Special), Lt. Col. William L. Osborne, was not activated until 5 August 1944. It included many survivors of the original American experiment in long-range penetration tactics--GALAHAD, or "Merrill's Marauders." Its companion regiment, the 124th Cavalry (Texas National Guard), Col. Milo H. Matteson, arrived in India on 30 August 1944. It did not reach the brigade's training area until 27 October. Also attached were the 612th Field Artillery Battalion (Pack), Maj. John W. Read, and six quartermaster pack troops. In mid-August 1944 the training area which had been set up about ten miles north of Myitkyina on the west bank of the Irrawaddy began receiving members of the 475th Infantry Regiment. The area was designated Camp Robert W. Landis in honor of the first member of GALAHAD to be killed in action. Unit after unit started moving into Camp Landis as the 5332d began to put on flesh and assume the likeness of a pair of regimental combat teams. Another battalion of pack artillery, the 613th under Lt. Col. James F. Donovan, the 18th Veterinary Evacuation Hospital, the 44th Portable Surgical Hospital, the 1st Chinese Separate Infantry Regiment, Col. Lin Kuan-hsiang, arrived during the fall.

Unfortunately, after overseeing the 5332nd’s organization and training, Arms was injured in a motor accident and was succeeded by Brigadier-General John Willey on October 31. In support of Operation Capital, it was agreed that Sultan’s forces would advance through the Katha-Bhamo area towards Kunchaung, Sikaw, and Namhkam in mid-October, followed by a southern advance to the Mogok-Mongmit-Lashio line in coordination with General Slim’s push towards Mandalay. Sultan planned a three-pronged attack south from Myitkyina into Japanese-held territory in northern Burma. The British 36th Division and the Chinese 50th Division would advance south along the Railway Corridor to secure the Katha-Indaw area; the Chinese 22nd Division would move southeast to capture the Broadway airstrip northeast of Katha and establish a bridgehead over the Irrawaddy at Shwegu; and the Chinese 38th Division, followed by the 30th Division, would move south from Mogaung to secure the Bhamo-Mansi area.

By the end of August, Festing’s forces had followed the 53rd Division to Pinbaw, then advanced cautiously until they secured Nanma in September. The British moved out on 15 October. At first, contact was light, but by the time they reached Mawlu on 31 October Japanese posts were stronger and closer together and their artillery and mortar fire was progressively heavier. However, at Mawlu the 36th was eighty miles south of Mogaung and very near the great bend of the Irrawaddy which was the goal for 15 December. The Japanese stiffened at Mawlu, and the 1st Battalion, Royal Scots Fusiliers, met artillery, mortar, and machine gun fire that took thirteen casualties. By evening the town was occupied. Road conditions were very bad, for the ground was still wet, and vehicles had trouble moving. After occupying Mawlu the division paused until 9 November. There were brushes with Japanese, snipings, patrol actions, but no heavy fighting. Festing used the lull to bring up the 72d Brigade, and so make his advance one of brigades in line, with the 72d on the east, the 29th on the west. The 72d would make the main effort.

Moving down a dry-weather road parallel to the railway tracks, elements of the 72d Brigade on 10 November met stubborn resistance a few miles northwest of a railway station called Pinwe. It came from a cluster of bunkers, which together with heavy artillery fire and the identification of Japanese from a number of units all pointed to one conclusion for the 36th--it had met the Japanese main line of resistance in this area centering on Pinwe. The Pinwe area was well adapted to defense. Farther north the 36th had fought its way over rice fields, but here the bush made an impenetrable screen on either side of the jungle tracks. Flanking movements were so difficult that they were judged to be impossible. Frontal attacks after artillery and air preparations became the order of the day. The Japanese lines at Pinwe were held by the 119th Regiment, 53d Division. Pinwe was the hardest fighting the 53d had encountered, and the 119th received a diploma of merit for its work there. At night their infiltration parties harassed the British rear areas and sought to destroy their artillery. On one occasion, they thrust so deftly into the British positions as to cut off two companies of infantry, which had to be withdrawn at night. The fighting resolved itself into British attempts at prying the Japanese out of their strongpoints, while maintaining a close guard against Japanese raiding parties. In these days the 72d Infantry Brigade, which had been trying to force its way over the stream covering the principal Japanese positions, took heavy casualties and had to be relieved by the 29th Infantry Brigade. On 25 November the British did put a company across the stream, but found they could not reinforce or supply it. The 53d Division was also ordered to execute limited but bold attacks to its front. To relieve the pressure on the 53d Division, the 15th Division was directed to attack the right flank and rear of the enemy 36th Division along the Meza River. Although the attacks of the 15th Division and the counterattacks of the 53d failed to destroy the enemy, they were successful in checking the offensive of the 36th and enabled the 53d Division to hold the line for approximately three weeks. The order to the 53d showed the DiVision commanders the caliber and determination of the new Army commander and the 53d's success in holding bolstered the sagging combat spirit of the entire 15th Army. Pressure on the 53d Division increased as the weeks went by; and when enemy elements infiltrated into the gap between the 53d and 15th Divisions in late November, the 15th Army finally ordered the 53d to withdraw to Katha and the sector north of Tigyaing. The 15th Division was ordered to withdraw its right wing to maintain contact with the revised battle line of the 53d Division. The 15th Army finally issued orders to the 53d and 15th Divisions directing the commencement of the withdrawal movement to the Irrawaddy River line on 1 December. The 33d Division was directed to withdraw on 4 December, giving the Division additional time for disposal of munitions in its area. From positions in the Kamaing area, far behind the outposts held by the 36th Division in the Railway Corridor, the 22d began its march on 15 October. It was to move southeast toward Mogaung, but bypassing the town to save ten miles, then toward Pinbaw, then Hopin. As the march got under way it appeared that the long rest after combat had left troops and animals in poor condition. The troops were traveling as light as possible, but fatigue was evident when after three days the division reached Hopin. Predawn departures were ordered to keep to a minimum the time spent marching under the full sun, and a day of rest was spent at Hopin. At Hopin the division turned east, to take a route that would sorely test the marching powers of its troops, for the chosen trail led over the ridge that marked the eastern boundary of the Railway Corridor, down into a plain formed by a tributary of the Irrawaddy, where the old Chindit airstrip BROADWAY was located, and up again over a hill mass overlooking the Irrawaddy valley. On 26 October the division reached the airstrip, twenty-seven miles southeast of Hopin. General Liao Yueh-shang, commanding the New Sixth Army, of which the 22d Division was part, flew in to BROADWAY, and gave the division detailed orders for the final move to the Irrawaddy. The division was formed into two columns. On the west, the 64th Regiment was directed to take Shwegugale, which lay on the south bank downstream from Shwegu. The 65th and 66th were to move off as one column, then to split into combat teams just north of the Irrawaddy and cross on a broad front. Kachin irregulars and patrols reported there were no Japanese ahead, and after a three-day rest the division resumed its advance. On 3 November the division occupied the north bank of the Irrawaddy without opposition. The troops rested while commanders studied maps and waited for rubber boats and outboard motors to be airdropped. Three days later the 64th Regiment crossed the Irrawaddy and took Shwegugale against light opposition. Next day the 65th Regiment took Shwegu, and the division had its first objectives. Meanwhile, after the unsuccessful Dan offensive, General Honda reorganized the 33rd Army. The 56th Division resumed defending Longling and Mangshi, while the 18th Division took over the defense of Namhkam. Although the Yoshida Force and the Bhamo Garrison remained with the 33rd Army, the 2nd Division was reassigned to the area army and began relocating to the Pyinmana-Toungoo area by the end of October to be available for operations in central Burma.

Unbeknownst to Honda, he was soon to encounter the full force of Sultan's renewed offensive. Major-General Li Hong’s 38th Division had departed from Myitkyina on October 15, advancing cautiously along the road to Bhamo with minimal contact until October 28. On that date, they encountered Japanese patrols two miles north of the Taping River, which were quickly dispatched. At Myothit was the Japanese outpost line of resistance; the Chinese patrols speedily found that the Japanese meant to defend it. Strong Japanese positions were seen on the south bank, and the commander of the 38th Division, General Li Huang, saw that he would have to force a defended river line unless he could turn the Japanese position. General Li decided to use the 112th and 114th Regiments, which had been the main body of the 38th, as an enveloping force. Since they were some seven miles to the north the 112th and 114th were out of contact with the Japanese and well placed to make a wide swing to the east. The two regiments began their march through the hills, while the 113th made a show of activity around Myothit to keep the Japanese attention focused there. Once again envelopment proved its worth. The Japanese were too few to defend a long line, and the enveloping force was able to cross the Taping at an unguarded bridge upstream, go around the right end of the Japanese outpost line of resistance, and emerge on the Bhamo plain on 10 November. Pressing on west toward Bhamo, the enveloping force met a strong entrenched Japanese force at Momauk, which is eight miles east of Bhamo and is the point at which the Myitkyina-Bhamo road swings to the west for the last stretch into Bhamo. Here there was savage fighting between the 114th Regiment and the Japanese defenders. Heavily outnumbered, the Japanese outpost at Momauk was driven into the main defenses at Bhamo. The appearance of its survivors, some without rifles, others without shoes, depressed the Bhamo garrison.

Hara’s forces endured significant losses as they conducted a delaying action at Momauk, with the remaining reconnaissance units joining the defense of Bhamo by November 16. Meanwhile, the 113th Regiment moved west along the south bank of the Taping River and approached Bhamo from the north. However, instead of directly attacking the town, the 113th Regiment repositioned south and southeast of Bhamo. Concurrently, the 114th Regiment advanced west from Momauk to encircle the town from the north, creating a loose encirclement around the Japanese outposts in the Bhamo suburbs. This maneuver allowed the 112th Regiment to bypass the confrontation entirely and continue south towards Namhkam. By early November, Japanese patrols had also detected the presence of the 22nd Division in the region between Bhamo and Katha, apparently moving towards Mandalay. Fearing that this force might sever the Mandalay-Lashio rail line by advancing through Mongmit, Honda’s staff decided to keep the 55th Regiment stationed at Namhkam and reassign the rest of General Naka’s 18th Division to Mongmit to prevent the effective separation of the 15th and 33rd Armies.

While the 64th Regiment remained to secure the crossing area, the 22nd Division advanced towards Man Tha along the main road south from the Japanese stronghold of Bhamo, which was captured without incident on November 14. Continuing along the Bhamo-Myitson road, the Si-u area was secured by late November, with Colonel Ernest Easterbrook’s 475th Regiment also moving there after bypassing Bhamo successfully. Meanwhile, after a period of recovery due to heavy losses in September, General Wei’s Y-Force was preparing to resume its Salween offensive. On October 29, Lieutenant-General Huang Jie assaulted  Longling, defended by the 146th Regiment's main force with artillery support up to 1,700 rounds and 30-40 air sorties per day carried out by 37 P-40s of the 14th Air Force.

Elements of the 200th Division attacked from the south and west, targeting positions behind Colonel Imaoka’s defenses, while two divisions of the 71st Army exerted heavy pressure from the north. With many positions being devastated and numerous defenders killed or wounded, General Matsuyama ordered the 146th to retreat from Longling to Mangshi on November 3. Although the Japanese managed a midnight withdrawal, the Chinese succeeded in capturing their main objective. The Japanese respite, however, unsettled the Americans, who promptly urged Chiang to continue the offensive. Following the Generalissimo’s orders to advance on November 9, Wei directed the newly arrived 53rd Army through the hills north of the Burma Road to Chefang, while the 2nd and 6th Armies moved south towards Mangshi, and the 71st Army proceeded down the road itself.

Against the expected offensive, the 56th Division consolidated its defense around Mangshih with eight infantry and two artillery battalions on an established defense perimeter. The Yoshida Force, which was under the direct command of the Army at Wanting, was assigned the missions of protecting the rear of the 56th Division with its main force in the area north of Chefang and the 3d Battal- ion in the Menka area. At the same time, the 3d Battalion of the 146th Infantry Regiment was moved from Mangshih to join the Yoshida Force. A detachment of about 100 replacement troops was assigned to hold Chefang Pass. Although the 56th Division continued to be optimistic about its chances of holding against the expected Chinese attack, Army Headquarters took a less hopeful view. The Division was ordered to conduct a flexible holding operation north of Wanting and not cling too tenaciously to Mangshih.

After a strong Chinese offensive on November 19, and following Colonel Tsuji's insistence, Matsuyama had no choice but to withdraw during the night to the Chefang Pass. General Matsuyama was strongly in favor of conducting a holding action in the Mangshi area and merely directed a partial withdrawal of his forces to be effected on November 22, 23 and 24. Col. Tsuji, of the 33rd Army headquarters, was present at the 56th Division headquarters and warned the chief of staff against over-optimism. Tsuji stressed the point that, once the withdrawal had been decided upon, the Division should withdraw simultaneously from the entire line to the south of Chefang Pass, preferably on the eve of the general attack or on the following night, at the latest. However, Col. Kawamichi, the Division chief of staff, would not change the order because it had already been passed down to the subordinate units. Subsequently, following an inspection of the front lines and an observation of enemy activity on the 18th, Tsuji came to the conclusion that the enemy would launch a general attack at dawn on the 19th or early on the 20th. He bluntly advised General Matsuyama to change his division order and at his insistence the order was changed to a withdrawal at midnight on November 19 to Chefang Pass. At dawn of the 19th, the Chinese launched a heavy attack in an attempt to envelop the entire line, just as Tsuji had predicted. All frontline units held in their prepared positions and inflicted heavy losses. Throughout the day they were able to check the enemy, but with the tremendous forces arrayed against the Division it is probable that many of the positions would have been overrun the following day. The Division, however, succeeded in withdrawing from the entire line at midnight on November 19.As a result, the strategic Mangshi airfield fell to Wei, enabling him to land supplies rather than relying solely on airdrops. 

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Despite the heavy losses, capturing Angaur proved crucial in securing the Palaus and removing the island group as a threat to Allied lines of communication across the western Pacific toward the Philippines. General MacArthur was getting closer to his ultimate goa

Last time we spoke about the battles for Peleliu and Angaur. Following the amphibious assaults on Peleliu and Anguar, US Marines under General Rupertus intensified their offensive. On September 17, Colonel Hanneken’s 7th Marines advanced in Peleliu's southern sector, as the 1st and 5th Marines pushed north, confronting the fortified Umurbrogol Mountains, where Colonel Nakagawa’s defenses stalled their progress. Despite reaching key positions by mid-morning, intense Japanese counterattacks continued, causing heavy casualties. On September 18, the 7th Marines, aided by armor, resumed their slow advance, securing the southern part of Peleliu by day's end. Meanwhile, the 1st and 5th Marines faced brutal combat in the central ridges, suffering significant losses. By September 21, the capture of nearby Ulithi Atoll provided a strategic base for future operations. Despite securing important positions, the Marines encountered severe resistance in the Umurbrogol Mountains, leading to high casualties and necessitating reinforcements. By September 23, the Americans secured footholds on Peleliu and Anguar, yet fierce fighting persisted in Nakagawa’s fortified positions.

This episode is the Japanese Triumph in China

Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more  so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945. 

This week we are picking up back over on Peleliu and Anguar where the Japanese are still providing stiff resistance. On September 23, Colonel Venable’s 322nd Regiment had made little progress breaking into the Lake Salome bowl. With their commanding officer severely injured, a change in tactics was imminent. On the morning of September 24, propaganda broadcasts over a public address system were used to try and persuade the remaining Japanese to surrender. However, only two Japanese soldiers surrendered, reporting that over 300 defenders remained in the bowl under Major Goto. This accurate estimate was disregarded by the American command, who believed only about 150 defenders remained. Following this failed attempt, all available artillery bombarded the bowl in preparation for an attack from the north, altering the appearance of the bowl's interior and rims to aid the upcoming assault. Back at Peleliu, after heavy bombardment, Colonel Dark’s 321st Regiment resumed its advance north along the coast on September 24, despite continued harassment from Japanese fire from the central ridges. By noon, they had secured the trail-road junction south of Garekoru. Some troops explored the trail to the east, encountering heavy resistance, while Company G advanced rapidly north through Garekoru, reaching the O-4 Line. Behind them, Dark’s 3rd Battalion and Colonel Hanneken’s 3rd Battalion also pushed northwards. Further east, the 7th Marines pressed against Colonel Nakagawa’s main defenses on the Umurbrogol Mountains. By nightfall, having successfully resisted Japanese counterattacks on O-4, General Rupertus’ northward drive had proven to be a significant success.

He next planned to cut across the island on September 25 through the eastern trail to completely isolate the Japanese forces in the Umurbrogol ridges. At 07:00, Dark’s troops began moving eastward, with Company E successfully reaching the edge of East Road against light opposition. They halted in front of Hill B, which dominated the eastern area. However, the 3rd Battalion encountered heavier resistance from pillboxes and emplacements protected by steep walls and sheer cliffs guarding the northern approaches to the Umurbrogol defense system, making little progress. Meanwhile, to the north, a strong tank-infantry patrol advanced about 1,200 yards, killing 30 Japanese and destroying four pillboxes and two large supply dumps before reaching the O-5 Line. The weak resistance encountered by the patrol suggested that remaining Japanese strength was concentrated in the Umurbrogol Pocket. Thus, at 10:30, Rupertus decided to commit the 5th Marines for a drive to the northern tip of Peleliu. Rapidly relieved by the 1st Marines on eastern Peleliu.

Orders to move to the western portion of Peleliu found the 5th Marines in static positions on Eastern Peleliu, where the regimental mission had been to prevent enemy counterlandings. The 1st Battalion was deployed in the vicinity of the radio direction finding station near Ngardololok, the 2d Battalion was holding the islands north of the northeastern peninsula, while the 3d Battalion, less one company, occupied defensive positions along Purple Beach. The 1st Marines completed the relief of the 5th shortly after noon and assumed command of the 5th Marines sector at that time. In order to expedite movement of the regiment to the West Road, the battalions moved out on trucks at 1300, with 1/5 in the lead, followed by 3/5 and 2/5. 

By 1600, the 5th Marines had executed the passage of the lines, and the regiment passed through Phase Line O-4 near Garekoru. As 1/5 continued its advance up the West Road, it encountered erratic resistance from what appeared to be Japanese holdouts. The level terrain was devoid of the dense jungle growth abounding elsewhere on Peleliu and offered ideal conditions for the movement of tanks and LVT flamethrowers accompanying the advance battalion. Aside from occasional Japanese sniper and mortar fire, the advance continued for about 500 yards without interruption to Road Junction 15, where the West and East Roads met. This vital point was defended by a small Japanese force, which had installed itself on a ridge dominating the road forks. Around 1700, as the Marines approached this point, the enemy opened fire, which served only to delay the Marines. When the firefight ended the Japanese had lost 20 killed. The battalion continued its advance for another 100 yards and seized the Japanese radio station, whose towers the forward elements of RCT 321 had spotted on the previous day. Having secured this objective, the battalion established night defenses north of the radio station from the beach to the high ground east of the West Road. Upon reaching Road Junction 15 in the wake of the advance of 1/5, the 3d Battalion pivoted to the southeast and headed down East Road, where it established night defenses on the road and along the western slopes of Hill 80. The latter hill, in itself an isolated terrain feature, owed its importance to its location, for it was the only link separating the Kamilianlul ridges to the south from the Amiangal ridges, which formed the northernmost hill mass on Peleliu.

Throughout the evening and night, the forward elements at the radio station were continuously and heavily attacked and bombed but managed to hold against the enemy onslaught. Meanwhile, at Angaur, after a heavy and prolonged artillery bombardment, the 3rd Battalion, 322nd Regiment pushed forward to launch its assault from the north. Finding no route south over the cliffs, they assembled near the northern end of the Milwaukee Railroad for an attack west the following day. At 07:30 on September 26, the infantry launched their assault on Lake Salome, quickly taking control of the eastern rim with minimal resistance. Facing increasing enemy fire, the Americans made their way down the eastern rim to the bowl floor. However, by the end of the day, they were halted by Goto’s positions on the northern cliffs and "The Island," a gap between an overgrown coral mound and the eastern rim. To the south, the 2nd Battalion supported the attack by advancing north, capturing the southeast rim and clearing out several enemy cave positions. 

Back over on Peleliu the Marines had a very rough night full of Japanese infiltrator harassment. In fact our old friend Eugene Sledge wrote about the night of September 25th and what his unit of K Company, 3rd battalion, 5th marines went through.

The Japanese who had come across the road in front of me were probably members of what the enemy called a “close-quarter combat unit.” The enemy soldier shot by Sam was not dressed or equipped like their typical infantryman. Rather he wore only tropical khaki shorts, short-sleeved shirt, and tabi footwear (splittoed, rubber-soled canvas shoes). He carried only his bayonet. Why he entered our line where he did may have been pure accident, or he may have had an eye on our mortar. His comrade angled off toward the right near a machine gun on our flank. Mortars and machine guns were favorite targets for infiltrators on the front lines. To the rear, they went after heavy mortars, communications, and artillery. Before Company K moved out, I went down the road to the next company to see what had happened during the night. I learned that those blood-chilling screams had come from the Japanese I had seen run to the right. He had jumped into a foxhole where he met an alert Marine. In the ensuing struggle each had lost his weapon. The desperate Marine had jammed his forefinger into his enemy's eye socket and killed him. Such was the physical horror and brutish reality of war for us.

The 1/5 spent the early hours of 26 September in consolidating its positions around the radio station and preparing for continuation of its attack later in the day to the northern tip of Peleliu. Shortly after 0600, 3/5 jumped off for an attack against Hill 80 with Company K on the left and Company I on the right. The attack carried the hill and by 0830 the assault force reached a swamp bordering the east coast of Peleliu. This advance of the 3d Battalion was of major importance because it effectively cut the island in two. Late in the afternoon most of the battalion moved back from Hill 80 to a reserve position near the junction of East and West Roads. The unit's southern flank extended south from the junction along East Road to Hill 80, where Company I was stationed for the night. Between Company I, 5th Marines, and the 2d Battalion, 321st Infantry, at Hill B, lay a gap approximately 1,800 yards long through which only the 321st Infantry's Neal Task Force had passed. In this gap lay 1,500-yard-long Kamilianlul Mountain, held by an unknown number of Japanese and as yet not even reconnoitered by American units. The 5th Marines consolidated their positions and resumed their assault.

The 1st Battalion, 5th Marines, ran into stiff opposition from the Amiangal ridges dominating northern Peleliu. The northern portion of the L-shaped hill system consisted of ridges running generally from northeast to southwest for about 1,000 yards; the southern leg extended from northwest to southeast. The southern leg of the ridges was not continuous but broken into four separate hills or knobs, designated from northwest to southeast as Hill 1, Hill 2, Hill 3, and Radar Hill, so named because it had at one time served as an enemy radar installation. These four knobs were to gain ill repute as Hill Row. The entire Amiangal ridge system was held in strength by the Japanese, particularly the portion paralleling the route of advance of 1/5. This part contained some of the most elaborate caves and tunnels on Peleliu. The battalion had barely started out along the West Road when the enemy in and on Hill 1 opened up on the Marines with 37mm and 75mm guns as well as automatic weapons and mortars. This curtain of fire from the Amiangal ridges was reinforced by heavy fire from Ngesebus Island. All forward movement soon halted. Attacking eastward from the West Road, Company B assaulted the second knob, Hill 2, but also encountered opposition. Through sheer determination the company was able to gain a firm foothold on the hill by early afternoon. This accomplishment in effect served to outflank the Japanese on Hill 1, but Japanese resistance on the last mentioned hill continued throughout the day. An attempt by Company C to seize all of Hill 1 during the remaining hours of daylight was unsuccessful, and continuation of the assault had to await the following day. During the bitter fighting in which 1/5 engaged during the night of 25-26 September and for most of the following day, 2/5 remained stationary on the southern flank of the regiment. At 1600 on 26 September, when it had become apparent that 1/5 could make no further progress, 2/5 was ordered to attack. The battalion advanced northward through the left wing of 1/5, carefully bypassing embattled Hill 1. In the course of its advance, the battalion drew heavy fire from Japanese emplacements in the plain, from the ridges on its right, as well as from Ngesebus. Enemy mortars proved especially troublesome. As a result of the heavy fire, Company F lost four of its supporting tanks before it had advanced very far beyond Hill 1. Attempts by the artillery to give all possible support to the battalion were largely ineffectual. "We fired frequent missions throughout the day on these mortars; the reported effect was that the mortars were neutralized while we fired but that they were not destroyed. The enemy apparently withdrew into the caves during the period of our fire." As evening approached, the 5th Marines occupied a jagged front line. The 1st Battalion, though out of contact with the 2d, was tied in with the 3d on the right. The mission of the 3d Battalion was to support either the 1st or 2d Battalion in the event of a major Japanese counterattack. Further progress of the 2d Battalion was impeded by a large antitank ditch, which blocked the approach to the remnants of the Peleliu phosphate plant. The Japanese had converted the reinforced concrete foundation of the otherwise demolished structure into a major defensive installation. Exposed to the enemy fire from Ngesebus Island and plunging fire from caves and defensive positions from the hills, 2/5 found itself in a very unenviable situation.

Further south, after some necessary adjustments, Dark’s forces assaulted Hill B with two battalions. Initially repelled, Dark then sent a task force led by Captain George Neal to attack from the north. After a complex maneuver north and then south, the Neal Task Force attacked Hill B just as other elements of the 321st fought their way to the top through challenging terrain. The hill eventually fell to the Americans, completing the isolation of the Umurbrogol Pocket. By the end of the day, the island was divided in two places, leaving Nakagawa’s determined defenders isolated in two major pockets. On September 27, with the Umurbrogol Pocket now contained, the 5th Marines continued their operations against Amiangal Mountain. At the same time, the 1st Battalion, 321st Regiment advanced north from the Hill B area to close the long gap along East Road up to Hill 80. Dark's infantrymen secured Kamilianlul Mountain with minimal resistance and then moved towards the Marines’ road junction. 

The 2d Battalion was to find progress extremely rough for the remainder of the day. First, the erstwhile phosphate plant, which the Japanese had turned into a blockhouse, had to be secured in an area that bristled with snipers. The problem confronting Colonel Harris was a formidable one. The blockhouse in front of 2/5 could not be taken until the antitank ditch blocking the approaches to it had been seized. This was a job that the infantry could not tackle without armored support. The regimental commander decided to utilize all arms available in reducing these obstacles. First of all, Colonel Harris called naval gunfire and artillery in on Ngesebus and any other targets suspected of harboring artillery or mortar positions. A medium tank, equipped with a bulldozer blade, was pressed into service to level the antitank ditch, and filled it by 0830. A LVT flamethrower then was able to come within effective range of the Japanese fortification. Moments later, when the flame and smoke had cleared, all resistance from this stronghold had ceased and more than 60 dead Japanese remained in the rubble. While this action was in progress, patrols from Company E seized a small, weakly defended ridge abutting the road from the east. The 2d Battalion thereafter resumed its advance northward along the road as well as over the adjacent ridge. Company F, at the head of the column, soon found itself embroiled in some of the most bitter and frustrating action of the entire campaign. Aside from receiving heavy Japanese artillery and mortar fire, the company faced a series of pillboxes and field fortifications on level ground, and layer upon layer of caves in the hillsides. Even though they were not aware of it at the time, the men of the 5th Marines had come upon the most skillfully constructed defenses on Peleliu. The Japanese Army had utilized all of the many natural caves possessing tactical value, adapting them for the emplacement of heavier weapons with great ingenuity. On the other hand, Japanese naval troops had preferred to construct their own caves with the help of the 214th Naval Construction Battalion, composed of men who had been professional miners and tunnel workers in civilian life. Since most of these Navy caves were located near the northern end of Peleliu, they proved a serious obstacle to the advance of the 5th Marines. Eugene Sledge faced these obstacles and saw firsthand the effectiveness of flamethrowers. Here is a passage from him:

Burgin's order to us to continue firing into the opening interrupted my musings. We kept up a steady fire into the pillbox to keep the Japanese pinned down while the flamethrower came up, carried by Corporal Womack from Mississippi. He was a brave, good-natured guy and popular with the troops, but he was one of the fiercest-looking Marines I ever saw. He was big and husky with a fiery red beard well powdered with white coral dust. He reminded me of some wild Viking. I was glad we were on the same side. Stooped under the heavy tanks on his back, Womack approached the pillbox with his assistant just out of the line of our fire. When they got about fifteen yards from the target, we ceased firing. The assistant reached up and turned a valve on the flamethrower. Womack then aimed the nozzle at the opening made by the 75mm gun. He pressed the trigger. With a whoooooooosh the flame leaped at the opening. Some muffled screams, then all quiet. Even the stoic Japanese couldn't suppress the agony of death by fire and suffocation. But they were no more likely to surrender to us than we would have been to them had we ever been confronted with the possibility of surrender. In fighting the Japanese, surrender was not one of our options. 

Sheer courage and heroism in themselves proved inadequate for the task. In the course of the morning of 27 September, Company F seized the two ridges forming the northwestern anchor of the Amiangal system and established observation posts on the crests. But this did not solve the problem of what to do about the Japanese occupying the caves about half way up the hill. Marine casualties mounted steadily, and evacuation of the wounded became more and more difficult. Since the cave openings completely dominated the road leading past the northernmost ridge of Peleliu, the advance of the entire 2d Battalion ground to a halt. The first tank attempting to squeeze through the narrow gap between the hill and the northwestern shore was hit, and the Marines occupying the crest of the hill were powerless to cope with the caves underneath.

Although the Americans now controlled the northern shore and blocked further enemy reinforcements, skilled Japanese miners continued their resistance underground. What the Marines did not know was that they were facing the most comprehensive cave system on Peleliu which was the underground home of the Japanese naval construction units who were, luckily for the Marines, better miners than infantrymen. The Japanese Army had utilized all of the many natural caves possessing tactical value, adapting them for the emplacement of heavier weapons with great ingenuity. On the other hand, Japanese naval troops had preferred to construct their own caves with the help of the 214th Naval Construction Battalion, composed of men who had been professional miners and tunnel workers in civilian life. Since most of these Navy caves were located near the northern end of Peleliu, they proved a serious obstacle to the advance of the 5th Marines. In the end, it would take weeks for the Marines to finally quash all resistance on Akarakoro Point, then only by blasting closed all the tunnel entrances, sealing the Japanese defenders inside to their fate.

To the south, Harris’ 1st Battalion pressed on with their attack on the mountain's southern leg, successfully capturing Hill 1. Meanwhile, the 322nd Regiment resumed its assault on the Lake Salome bowl, fighting to secure the base of the north rim but encountering less resistance in the south as most Japanese defenders had been evacuated towards Romauldo. The following day, despite a successful enemy mortar barrage that initially forced a temporary withdrawal and reorganization, the Americans cleared the entire bowl floor of Japanese troops, isolating Goto’s remaining forces in the Romauldo area. This progress enabled the 322nd to launch a final coordinated attack on October 1, with its three battalions trapping the enemy in the Romauldo Pocket, though they were unable to penetrate Goto’s final defenses.

On September 28 at Peleliu, while Dark’s 1st Battalion engaged Japanese infiltrators while mopping up the Kamilianlul Mountain area, Harris’ 1st and 2nd Battalions continued their assault on Amiangal and successfully captured Hill 3. This action isolated the remaining Japanese forces at Radar Hill. Meanwhile, the 3rd Battalion, 5th Marines executed a successful landing on Ngesebus Island with minimal resistance after a comprehensive artillery, air, and naval bombardment. 

The curtain on the drama of Ngesebus opened on the morning of September 28, when the massed fire of five artillery battalions from Peleliu, as well as heavy fire from warships and aircraft, blanketed the island. Near the northwestern shore of Peleliu, an impressive gathering of high-ranking officers had assembled to witness the operation. The group included such notables as Admiral Fort, and Generals Julian C. Smith, Geiger, Rupertus, Mueller, Oliver P. Smith, and Bell. The weather was cool and cloudy and interspersed with frequent rain squalls. For the Corsair pilots of VMF-114, air support for the Ngesebus landings represented a very interesting and original assignment. The operation marked the beginning of combat work for the squadron, which had reached Peleliu only two days earlier. At 06:30, the Corsairs hit the airstrip on Ngesebus with 500-pound bombs and strafed the entire island as well as Kongauru to the northeast. "Strafing runs were made just a few feet off the deck and a hail of lead laid all over the island." At 08:40, 20 Corsairs preceded the landing craft and gave the island another heavy strafing. In the course of this attack, Japanese mortar positions were spotted and one especially prominent square blockhouse with an iron door was fired on and neutralized. Whenever aircraft were not directly over the island, the artillery on Peleliu and naval guns offshore gave Ngesebus a heavy going over, starting at 07:00 and concluding at 09:05. Both quick and delay fuzes were used. Observers reported that the island was completely covered with fire. In the course of the preliminary bombardment, naval gunfire ships pounded the northern portion of Ngesebus and continued to fire on that part of the island throughout the landing.

The Marines advanced inland, swiftly securing the airstrip and the eastern portion of Ngesebus. One platoon then landed on Kongauru and Murphy islands to secure them against light opposition. However, the attack to the northwest encountered strong resistance from Japanese forces entrenched in caves and dugouts, prompting the deployment of tanks to support the Marine assault. By 5:00 PM, nearly all of Ngesebus was under American control, with only a few hundred yards at the extreme northwestern tip remaining in Japanese hands and some caves on the ridges still needing to be cleared. 

The 3d Battalion spent a relatively quiet night on Ngesebus. On the morning of 29 September, Companies I and K resumed the attack. Progress was normal until the two companies had nearly reached the northern tip of Ngesebus, when a 75mm gun opened up at point blank range. The Marines quickly destroyed this weapon and went on to overcome the rest of the resistance on the island. At 1500, 29 September, Ngesebus was declared secure. An hour later, 2/321 relieved the Marines and completed mopping up. Having accomplished the mission on the island, 3/5 returned to Peleliu. The battalion had secured the island at a cost of 15 killed and 33 wounded. In return, the Marines killed or captured 470 Japanese. Infantrymen of 2/321 were to account for another hundred of the enemy during the ensuing mop-up. Eugene Sledge wrote this about the final capture of Ngesebus:

The next morning, again with the help of tanks and am-tracs, our battalion took most of the remainder of Ngesebus. Our casualties were remarkably low for the number of Japanese we killed.* In midafternoon we learned that an army unit would relieve us shortly and complete the job on the northern end of Ngesebus. Our mortar section halted to await orders and dispersed among some open bushes. In our midst was the wreckage of a Japanese heavy machine gun and the remains of the squad that had been wiped out by Company K. The squad members had been killed in the exact positions to be occupied by such a squad “according to the book.” At first glance the dead gunner appeared about to fire his deadly weapon. He still sat bolt upright in the proper firing position behind the breech of his machine gun. Even in death his eyes stared widely along the gun sights. Despite the vacant look of his dilated pupils, I couldn't believe he was dead. Cold chills ran along my spine. Gooseflesh tickled my back. It seemed as though he was looking through me into all eternity, that at any instant he would raise his hands—which rested in a relaxed manner on his thighs—grip the handles on the breech, and press the thumb trigger. The bright shiny brass slugs in the strip clip appeared as ready as the gunner, anxious to speed out, to kill, and to maim more of the “American devils.” But he would rot, and they would corrode. Neither he nor his ammo could do any more for the emperor. 

The rest of the 5th Marines continued their operations on September 29, launching a full-scale assault on Radar Hill using flamethrowers, bazookas, and demolition charges, finally capturing the position by the morning of September 30. Following the completion of operations in northern Peleliu, the 5th Marines were relieved by the 321st Regiment. However, as the Army troops took over, the remaining Japanese, who had been hiding underground, reoccupied some positions, requiring two additional days of fighting to fully secure northern Peleliu. Nonetheless, the Japanese presence in Peleliu had now been reduced to Nakagawa’s Umurbrogol Pocket, so Peleliu was officially secured. Total losses during this battle so far included 843 killed, 3845 wounded and 356 missing of the 1st Marine Division; 46 killed, 226 wounded and 7 missing from the 321st Regiment; and an estimated 9076 Japanese dead plus 180 prisoners of war. Yet that is all for today with Peleliu and Anguar as we now need to travel to China where the Japanese are still carrying out Operation Ichi-Go in an effort to capture Guilin and Liuzhou.

As we last observed, General Yokoyama's 11th Army had taken control of Lingling Airdrome and Quanzhou by September 14. Following this, they reorganized their units in preparation for resuming their offensive in October. Meanwhile, the 34th Division was deployed towards Changning, and the 37th Division moved to capture Shaoyang, which fell by the end of the month. The 23rd Army also made final preparations for their offensive in early September. General Tanaka directed the Kawakami Raiding Unit in a wide flanking maneuver along the Zhukeng-Huaiji road towards Wuzhou, while the 23rd Independent Mixed Brigade embarked on a long march north to Guiping. On September 13, the 22nd Independent Mixed Brigade and the 22nd and 104th Divisions began their main advance towards Wuzhou. However, the Kawakami Raiding Unit successfully captured Wuzhou on September 22 and seized the Danzhuzhen airfield six days later. Each unit then continued its advance westward to Guiping, which fell to the 23rd Brigade on October 11. So far, Tanaka’s forces had encountered little to no resistance, but this was about to change.

After the war, in discussing the performance of the Chinese divisions supposed to defend Guilin and Liuzhou, the political situation in east China, and the attitudes of the east China commanders, Marshal Hata remarked that in his opinion Li Zongren and Bai Chongxi had kept their forces out of serious fighting in order to conserve them "for the future." At the time, there were rumors that these men were planning a coup against Chiang Kai-Shek. Chinese resistance was light, but with its supply situation improved the 14th Air Force again did its best on the Salween as well as in east China. In all September the force dropped 1897.6 tons of bombs and fired 1281382 rounds of machine-gun ammunition, some of the latter of course at aerial targets. In early September, Japanese fighter reinforcements from the homeland also entered combat. The Japanese were pleased at the performance of the latemodel fighters with one of the air regiments they sent to China. Thanks to the air cover thus supplied, for the first time in the east China campaign they found themselves able to move supplies regularly on the Xiang Jiang, which paralleled their line of advance, and so thought their prospects "brightened." 

At the beginning of the month, Yokoyama renewed his offensive, with the 58th Division successfully taking Xing’An and the 34th Division capturing Changning. The 37th Division was then deployed to Dao, and the 34th Division was sent to Xing’An in preparation for the final push toward Guilin. On October 20, this attack commenced as Yokoyama directed the 216th Regiment to advance to Lehecun, the 58th Division to assault the area north of Guilin, the 40th Division to move to Gaoshangzhen, the 13th Division to advance to Quanhuicun, and the 3rd Division to push toward Fuchuan. With minimal resistance from the retreating Japanese forces, most of these movements were completed by the end of the month. The 3rd Division pushed further to Pingle, while the 37th Division occupied Gongchengzhen and Yanshan to approach Guilin from the south. On November 3, the 3rd Division captured Lipu and began preparations for the advance towards Liuzhen, encircling Guilin and opening the route to Liuzhen.

Meanwhile, on October 22, Tanaka ordered the reinforced 23rd Brigade to continue its advance toward Guigang, with the 104th and 22nd Divisions pushing toward Wuxuan. Their progress, previously unopposed, was now challenged by the Chinese 46th and 64th Armies, which launched daily attacks against Guiping with substantial air support. As a result, the 22nd Division was redirected to counter the Chinese forces, successfully forcing their withdrawal by October 29. Following this victory, the 23rd Brigade captured Guigang on November 3, and the 104th Division seized Wuxuan the following day. This allowed Tanaka’s forces to begin a northern pursuit to support Yokoyama’s assaults on Guilin and Liuzhen.

After the third Anshan strike, General LeMay began implementing reforms within the 20th Bomber Command. These changes included reorganizing the command, enhancing the logistics system, adjusting target priorities, and improving coordination with Pacific operations. As a result, the frequency of missions increased each month, with each mission becoming more substantial and effective. Concurrently, following the successful completion of the newly renamed Isley Field on Saipan, the 73rd Bombardment Wing was redirected to the Marianas instead of the CBI Theater. There, it would join Major-General Haywood Hansell’s 21st Bomber Command, tasked with executing high-altitude, daylight precision attacks to cripple Japan's aircraft industry. 

The XXI Bomber Command arrived on Saipan on October 12, 1944, and from the start General Hansell was beset by a host of serious command problems, the worst of which were continued teething problems with the B-29, tardy delivery of aircraft, aircrews untrained in high altitude formation flying, primitive airfield conditions, lack of an air service command for logistical support, no repair depots, a total absence of target intelligence, stubborn internal resistance to daylight operations by his sole combat wing, subordinates in the XXI Bomber Command who lobbied for his removal, and Hansell's inferiority in rank in dealing with other AAF commanders in the theater. Furthermore, Hansell was soon prohibited from flying combat missions with his command, possibly because of limited knowledge of the atomic bomb or the perception that he knew the existence of Ultra.

As plans for a sustained bomber offensive against Honshu progressed, the strategic focus of Operation Matterhorn diminished. The 20th Bomber Command shifted to flying missions in direct support of other Pacific operations, with target priorities moving from coke ovens to the aircraft industry. In preparation for the upcoming invasion of the Philippines, the command was tasked with two closely spaced maximum missions against Okayama in Formosa, totaling 170 sorties, along with very-long-range reconnaissance missions. Yet now we have to travel over to the India-Burma theater. As the advance towards the Chindwin continued and the resilient 33rd Division finally crossed the river in late November, General Katamura was finalizing his plans for a withdrawal to the Mandalay sector, scheduled for December. This decision was driven by the intense pressure the British 36th Division was putting on General Takeda’s defensive positions at Pinwe, forcing the defenders to prepare for a final retreat by the end of November. Meanwhile, General Slim was preparing for Operation Capital. He planned to stretch airpower to its limits to move four and two-thirds divisions across the Chindwin, along with two tank brigades. After establishing bridgeheads at Sittang, Mawlaik, and Kalewa, he intended to cross the Chindwin and confront General Kimura’s forces between the Chindwin and the Irrawaddy. The 4th Corps, now under the experienced General Messervy, would break out from the Sittang bridgehead, advance east through the mountains, capture Pinlebu, and then approach the Shwebo plain from the north. Simultaneously, General Stopford’s 33rd Corps would move from Kalewa, following the Chindwin southeast to Yeu and Monywa. Once the Japanese forces were pushed onto the open plain, Slim planned to exploit his overwhelming advantage in airpower and tanks to decisively defeat them, anticipating that the enemy would fiercely defend Mandalay.

The combination of the defeats at Kohima, Imphal, Mogaung and Myitkyina meant that by the autumn of 1944, Kimura’s role was reduced to defending southern Burma as the northern flank of their new ‘South-East Asia defense zone’. With few reinforcements or supplies to look forward to, Kimura had grim prospects. On paper he had ten divisions (2nd, 15th, 18th, 31st, 33rd, 49th, 53rd, 54th, 55th, & 56th), though this was really seven, since little remained of the three divisions that had been devastated at Kohima-Imphal. He also had the dubious support of Bose’s INA and Aung San’s seven-battalion Burma National Army, but the civilian population was increasingly going over to the side of the likely winners. Unexpectedly, Kimura received 30000 fresh troops in the period June–October, but his problem was more commissariat than raw numbers, since he was rapidly running out of supplies. Even those he had (45000 tons of food, 500 lorries and 2000 pack animals) were difficult to get to the front, and Kimura was painfully aware that the situation could only get worse. The South-East Asia zone was slowly being throttled by the Allied naval blockade, all approaches to Rangoon were mined, and in 1944 total Japanese shipping losses amounted to 2.3 million tons. Even those ships that ran the blockade would proceed no farther than Penang in Malaya.

Kimura chose to deploy smaller units to delay the British-Indian forces while the main body of the 15th Army retreated across the Irrawaddy River. His strategy was to launch a counterattack once the British crossed the river, aiming to replicate a reverse Imphal by wearing down the British-Indian forces through attrition and then destroying them during their retreat in the May 1945 monsoon. Meanwhile, Admiral Mountbatten was also seeking a victory of his own. On November 8, he ordered an assault on Japanese positions in Arakan, with a deadline set for the end of January. This operation was assigned to General Christison’s 15th Corps. 

I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me.

The fighting on Peleliu and Angaur raged asAmerican forces struggled against resilient Japanese defenses. Significant advances were made, including the isolation of the Umurbrogol Pocket and the capture of Ngesebus Island. Despite heavy casualties, Peleliu was eventually secured, leaving a small pocket of Japanese resistance.

Last time we spoke about the invasion of the Palau Islands. General Rupertus’s 1st Marine Division was tasked with attacking Peleliu, while General Mueller’s 81st Division would land on Angaur. Prior to the landings, extensive neutralization of Japanese airfields was carried out by Allied forces. On September 6, carrier-based aircraft attacked the Palaus, significantly damaging enemy targets but encountering minimal resistance. The invasion fleet, led by Admiral Fort, began landing operations on September 15. Despite strong Japanese defenses, especially around Peleliu’s rugged coral ridges, the Marines made some progress but faced intense resistance. Notable figures such as Eugene Sledge, author of “With the Old Breed,” provided personal insights into the brutal conditions faced. The landing saw heavy casualties and challenges, including ineffective pre-landing bombardments and fierce counterattacks, but the Marines managed to secure key positions by the end of the first day. The 81st Division then proceeded with landings on Angaur on September 17, facing lighter resistance but difficult terrain.

This episode is the Battles of Peleliu and Angaur

Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more  so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945. 

Last time we left off, Peleliu and Anguar had just been amphibiously assaulted by US Marines. While the landings on Angaur were underway, General Rupertus pressed on with the Peleliu offensive on September 17. In the southern sector, Colonel Hanneken’s 7th Marines made headway against the isolated Japanese defenders. The 3rd Battalion cleared a minefield and captured the southeast promontory, while the 1st Battalion took on the southwestern promontory but only managed to secure half of it due to fierce enemy resistance. To the north, the 1st and 5th Marines advanced further, encountering the Umurbrogol Mountains for the first time, where Colonel Nakagawa had fortified his defenses. On the left flank, Colonel Puller’s 1st and 3rd Battalions encountered minimal opposition as they moved along the relatively flat coastal plain but had to halt their advance when the 1st Battalion was impeded by a reinforced concrete blockhouse. On the right, Colonel Harris’ 2nd Battalion progressed well while staying hidden from Japanese artillery and mortar fire. However, despite reaching their objectives by mid-morning, Harris’ 1st Battalion faced difficulty when Puller’s 2nd Battalion, after making initial gains, was halted by the Umurbrogol defenses. They fought hard to secure Hill 200 but were immediately met with fire from the next ridge. Additionally, Harris’ 3rd Battalion was pinned down by heavy flanking fire from the left. That night, additional armor was sent to the 7th Marines to support the ongoing operations in the south. The next morning, Hanneken’s 3rd Battalion launched a final assault. During the night of D+2, additional armor (tanks and 75mm gun-mounted halftracks) was brought up and at 10:00 on September 18 the advance was resumed. Again progress was painfully slow with many reserve elements being attacked by Japanese from bypassed caves and underground emplacements. At 13:44 elements of Companies A and C reached the southern shores, though the area being assaulted by Company B was still heavily defended. Tank support had withdrawn to re-arm and before Company B was in a position to resume the attack, a bulldozer was needed to extricate the gun-mounted half-tracks, which had become bogged down. At that time, several explosions were heard from the Japanese defenses and it was found that remaining Japanese defenders had finished the job for the Marines. The final handful leaped from the cliff tops into the sea in an effort to escape, only to be picked off by Marine riflemen. With the taking of the two promontories, the southern part of Peleliu was secured. 1/7 and 3/7 squared themselves away for a well-earned rest, while headquarters reported "1520 hours D+3, 7th Marines mission on Peleliu completed." Unfortunately, this was not quite the case. Despite the slow progress and intense Japanese resistance, the Marines managed to secure the southern portion of Peleliu by the end of September 18.

At the same time, the 1st and 5th Marines continued their fierce and costly push north. On the right flank, Colonel Harris’s 2nd Battalion faced only sporadic resistance as it cut through the dense jungle. The Americans eventually reached a causeway leading east to Peleliu’s northeastern peninsula, a potentially dangerous obstacle to their advance. After a successful patrol, Harris opted to call in an airstrike before crossing, but the strike missed its target and hit the area while the Marines were crossing. Despite this, the bridgehead was established, though further casualties were incurred due to friendly artillery and mortar fire. With this new foothold, Harris redirected his 3rd Battalion eastward across the causeway to support the 2nd Battalion’s advance. On the left flank, the 1st Marines, having sustained 1,236 casualties, were urged by Rupertus to "maintain the momentum." This led Colonel Puller to commit all available reserves, including engineers, support personnel, and Hanneken’s reserve 2nd Battalion. The 1st Marines suffered about 240 casualties during the 17th and in Japanese counterattacks the ensuing night; the 3rd Battalion was reduced to about one third of its original strength; and two companies of the 1st Battalion were practically finished as fighting units. On the other hand, there was some reason for optimism. Progress on the 17th had been measured in hundreds of yards in the rough, high ground at the southern end of the central ridges and strong Japanese resistance had been overcome. Whatever optimism may have existed was not to last too long. On the 18th, in what the Marine Corps' history of the operation characterizes as "savage and costly fighting," elements of the 1st and 7th Marines managed to advance more than 500 yards in the center, principally along the ridge lines and hills oriented north and south. But the advance during the day was held up at a group of peaks which seemed at first to form a continuous ridge line that was oriented more east and west than the rest of the Peleliu ridges. Soon, the name Five Sisters came to be applied to a cluster of peaks forming the western side of the terrain feature. A towering hill at its eastern extremity, separated from Five Sisters by a saddle, was designated Hill 300, or Old Baldy. With the 7th Marines held up in the center, at Five Sisters, the units on both sides of the central ridges halted so as not to create exposed flanks. Puller’s 3rd Battalion made progress along the coastal plains but had to pause to stay in contact with other units. Meanwhile, the 2nd Battalion struggled against the Umurbrogol Mountains, capturing Hill 210 before being forced to withdraw due to a fierce Japanese counterattack on Hill 200 behind them. At Anguar, following a three-hour artillery bombardment supported by aircraft, General Mueller’s 321st and 322nd Regiments resumed their advance north and west with tank support. After linking their advances, Colonel Venable pushed west and reached the high ground where Major Goto had established his main defenses, while Colonel Dark made significant progress south until his forces encountered the formidable defenses at Green Beach.

The night of 18-19 September was noisy and nerve-racking all along the front and few troops got much sleep. Minor Japanese attacks harassed the exposed salient held by the 3d Battalion, 322d Infantry, while bats and large land crabs helped the Japanese to create distraction and started troops firing on nonexistent enemy infiltrators. Apparently no casualties resulted either from Japanese action or indiscriminate small arms fire. Friendly artillery fire did, however, cause some casualties. About 2030, four or five 105-mm. shells from the 316th Field Artillery Battalion hit the lines of the 2d Battalion, 321st Infantry, killing 4 men and wounding 15 others. The artillery fire was stopped before further damage could be done.

On September 19, following a night of numerous Japanese infiltrations and small-scale counterattacks, the 322nd Regiment swiftly secured Saipan Town and advanced to the north shore of Garangaoi Cove. Meanwhile, the 321st Regiment successfully attacked and captured the Green Beach fortifications from their vulnerable side. To manage the exposed Japanese forces on the beaches, Dark’s 2nd Battalion, supported by tanks, maneuvered left and progressed down the southwest of the island, halting just short of the shoreline by nightfall. At Peleliu, Harris’ Marines made headway towards the Ngardololok area, overcoming light resistance and quickly dispatching the few enemy stragglers they encountered, reaching Purple Beach by day's end. However, in front of the O-3 line, Puller’s weary troops, having endured a grueling night of Japanese counterattacks, resumed their assault on the Umurbrogol Mountains. 

Despite some local advances, by evening on 20 September the 1st Marines had been stopped and, ". . . as an assault unit on the regimental level, had ceased temporarily to exist," having suffered almost 1,750 casualties, well over half its strength. Relief was absolutely necessary, not only because casualties were heavy but also because the survivors were physically exhausted from heat, lack of water, and continuous combat. Elements of the 7th Marines therefore relieved all 1st Marines units except those along West Road. While the 7th Marines took over from the exhausted 1st Marines on the right, the 5th Marines continued their advance through western Peleliu, securing its two peninsulas, including Island A and Ngabad Island, by September 21. General Mueller, concerned lest the Japanese reported on the south break through gaps or weak points in the forward lines, had special defenses in depth set up at RED and BLUE Beaches, utilizing Shore Party and antiaircraft troops. All units were alerted to expect Japanese attacks during the night. The division expected (and perhaps hoped) that the Japanese still believed to be located in southern Angaur might launch a suicidal desperation charge during the night or at dawn on the 20th. The night proved very quiet until, toward morning, some small, scattered Japanese parties infiltrated through the lines of both regiments. There was no banzai effort--rather, these Japanese troops were apparently attempting to escape to the northwest hill mass from positions in the mangrove swamp and GREEN Beach 3 areas. Action at dawn was limited to a mopping-up operation directed against four Japanese discovered in the headquarters area of the 2d Battalion, 321st Infantry. By 11:00 on September 20, Mueller reported to General Geiger that all organized resistance on Angaur had ended and that the island was secure.

General Mueller's statement was probably prompted by his realization that the remaining Japanese were compressed into the northwest hills and by the reports that about 850 of the enemy had been killed through the 20th. This casualty figure was an overestimation. Probably fewer than 600 Japanese had been killed through the 20th, and Major Goto still had possibly 750 men with which to conduct an organized defense in the northwest. On orders from General Inoue, Goto planned no final banzai attack which would decimate his forces. Instead he withdrew over half his force to rugged terrain and emplaced them in natural or prepared fortifications. His lines of defense in the northwest were well conceived; many of his positions were mutually supporting; the amphitheater configuration of the bowl provided him with defensive areas whence heavy cross fires could be directed at attackers; the broken coral, with its crevices, fissures, caves, and ridgelets, gave him defensive advantages at least as good as those at the Ibdi Pocket on Biak; and he had available a number of artillery and anti-tank weapons, heavy and light mortars, and heavy and light machine-guns, most of them so emplaced as to give maximum support to his riflemen. In addition, he could still exercise effective control over the men he had gathered in the Lake Salome bowl. For whatever it was worth, Goto was ready to conduct a protracted defense, though the best he could hope for was to tie down the 322nd Regiment. Nevertheless, the real issue at Angaur--securing the prospective airfield area--had already been decided.

To the north, while southern Angaur was being secured, Venable’s men were probing the enemy's northwestern defenses with a series of company-sized attacks. These attacks allowed the Americans to gather crucial information about Goto’s remaining positions, centered around the Lake Salome bowl. Venable discovered that organized resistance was still strong, prompting him to rearrange his units for a final push. Following a heavy artillery and air bombardment, the 322nd Regiment attacked the bowl with tank support, initially making some gains but soon encountering obstacles due to the terrain and enemy fire. By the end of September 21, Venable deemed the newly gained positions too exposed and decided to withdraw to the previous night's defenses. Meanwhile, the 1st and 7th Marines continued to face heavy casualties as they fought through the Umurbrogol Mountains, with the latter advancing less than 175 yards after two days of intense combat. Nakagawa’s fierce defenders managed to halt the 1st Marine Division on the rough and well-defended terrain, resulting in a total of 4,000 casualties by this time. After visiting the front, Geiger decided to replace the battered 1st Marines with Dark’s 321st Regiment, which had suffered minimal casualties and had completed its mission at Angaur. The 1st Marines by this time reported 1749 casualties. One Marine later described the fighting in the Umurbrogol, which attests to the level to which the 1st Marines had deteriorated: "I picked up the rifle of a dead Marine and I went up the hill; I remember no more than a few yards of scarred hillside, I didn't worry about death anymore, I had resigned from the human race. I crawled and scrambled forward and lay still without any feeling towards any human thing. In the next foxhole was a rifleman. He peered at me through red and painful eyes. I didn't care about him and he didn't care about me. As a fighting unit, the 1st Marines was finished. We were no longer human beings, I fired at anything that moved in front of me, friend or foe. I had no friends, I just wanted to kill."

OnSeptember 19, he also dispatched Colonel Arthur Watson's reserve 323rd Regiment to secure Ulithi Atoll. After a successful reconnaissance mission, the infantrymen landed on September 22, discovering that the atoll’s airfield and seaplane base had been abandoned by the Japanese. The Americans later established a major advanced fleet anchorage, a Marine airbase, and a Navy seaplane base there. Ulithi Atoll contained a 300-berth anchorage and a seaplane base. Occupation of these Western Caroline islands provided still another base from which future operations against the enemy could be supported. The construction of an airstrip on Ameliorate Island made possible fighter plane protection for the anchorage and afforded a base from which US aircraft could continue neutralization of the nearby Japanese bases on Yap. Together with Angaur and Peleliu Islands to the southwest and Guam, Tinian, and Saipan to the northeast, the capture of Ulithi Atoll completed a line of American bases that isolated Japanese holdings in the Central and South Pacific. The occupation of Ulithi Atoll further denied it to the enemy as a fleet anchorage, weather and radio station, and possible air and submarine base, in addition to precluding its use by the enemy to observe and report the activities of American forces in the sector. By September 25 the unloading of all the support ships had been completed and Vice Admiral John H. Hoover, Commander, Forward Areas Western Pacific, took over the task of developing Ulithi Atoll into an advanced fleet base. Within a month after its capture, more than 100 Navy craft from self-propelled types to lighters, floating drydocks, barges, landing craft, and seaplane wrecking derricks were en route to the island. During subsequent operations in the Philippines, the Pacific Fleet found Ulithi to be an extremely valuable base. Prior to the invasion of Okinawa, the island served as a staging area for fleet and amphibious forces. The atoll thus fulfilled a vital strategic role in the final phase of the Pacific War.

On that day, Venable resumed his assault on the Lake Salome bowl. The coastal offensive faced little resistance, but the attack through the southern defile encountered heavy enemy fire. Despite this, the troops reached the shores of Lake Salome. However, Venable was severely wounded during the action and had to be evacuated, with his troops retreating to more defensible positions by nightfall. The main strength of the attack was placed on the right (southeast) section of the bowl, and tanks fired along the eastern rim about 200 yards in front of the leading elements. The mediums had been undisturbed by enemy fire all morning, but, apparently attracted by an incautious grouping of officers and men near the lead tanks and defile exit, a Japanese anti-tank gun opened fire from a hidden emplacement along the east rim. Three officers (including Colonel Venable, who was in the forward area to observe the new attack) and one enlisted man were severely wounded and had to be evacuated. During the retirement on the 22nd, one of the three forward tanks was so badly damaged by a mine or buried shell that it could not be moved through the defile. This tank blocked the defile's northern entrance and prevented the withdrawal of another medium, which had to be destroyed to keep it from falling into Japanese hands. In four days of fruitless effort to push into the bowl from the south, three tanks and two 75-mm SPM's had been lost. Heavier infantry losses also began to be sustained now that the Japanese, cornered, were fighting to the death. On that day, for instance, the 2nd Battalion lost 2 men killed and about 35 wounded.

At 0730 on the morning of the 23d, the 2d Battalion, with Companies B, C, and E attached, continued the attack into the bowl from the south. Companies B and C worked up the east shore of Lake Salome. Companies I and G pushed toward the southwest and western shores, while Company F paid particular attention to caves along the southwest rim of the bowl. During the first part of the attack all companies moved forward rapidly, and Company I reached the northwest corner of the lake without much trouble. But Company B, pushing forward against increasingly heavy Japanese fire from the north, was pinned down by this fire when it reached the northeast corner of the lake. Company C was sent north on B's right to try to outflank the enemy machine gun and mortar positions from which the fire on Company B originated. The intention was to flush the Japanese from their positions and push them southwest and south against the main body of the 2d Battalion. But Company C could make little progress toward the northern section of the bowl, and its own position became precarious as Japanese mortar and machine gun fire increased and the 1st Battalion's own 81-mm. mortar ammunition ran out, making further mortar support impossible. Japanese fire continued to increase and the positions of all forward companies became untenable. A general withdrawal to the defile entrance was ordered. The withdrawal was painfully slow; companies were broken up; all units suffered more casualties. One small group of Company I, separated from its parent unit, worked over the cliffs and ridges at the bowl's western rim to the coast at BLACK Beach. Company B, retreating in small segments, lost men as it withdrew from the northeast corner of the lake. All told, the 2d Battalion and attached companies lost 18 men killed and over 75 wounded during the day.

Concurrently, as the 1st and 7th Marines continued to struggle with the formidable Umurbrogol Mountains, Harris’ Company G successfully secured the undefended Carlson Island, finally completing the 5th Marines' original mission. Despite concerns about a potential enemy attack on Koror and Babelthuap after the Peleliu operation, General Inoue decided to reinforce Nakagawa’s beleaguered garrison. By 21 September effective Japanese infantry strength in the central ridges was down to 1,300 men. That, of course, does not paint a true picture of the situation in the central pocket. A trained soldier, well armed, can be tenacious on the defense in such terrain as the central ridges of Peleliu whether or not he be trained for infantry service. There were probably 4,000 Japanese troops (including the 1,300 infantrymen) still firmly ensconced in the central pocket as of 21 September, and there were at least 1,000 more troops in the Amiangal Mountain area at northern Peleliu. Nevertheless, Colonel Nakagawa, commanding the Peleliu Sector Unit, clearly needed reinforcements if he was to hold out much longer. There were perhaps 30,000 Japanese troops in the northern Palaus to draw from, including two battalions of the 59th Infantry, two battalions of the 15th Infantry, and four or five recently organized infantry battalions of the 53d Independent Mixed Brigade.

The Japanese were not to reach their destination undetected. At 0535, the destroyer H.L. Edwards spotted seven enemy barges about 1,000 yards northeast of Akarakoro Point at the northern tip of Peleliu, obviously headed for the island. The destroyer opened fire, sinking one barge before the remainder reached the beach. A combination of bombing and strafing, naval gunfire, and artillery hit the barges on the beach, and by 0845 the cruiser Louisville reported all barges destroyed. The enemy version of this incident agrees only in part with the American account, adding that "despite receiving severe enemy air and artillery fire at a point two kilometers off the coast, they made a successful landing at 0520 hours under the command of 1st Lieutenant Murahori".

Knowing that some Japanese forces had reached Peleliu, Rupertus decided to deploy his own reinforcements between the central ridges and the western shore, targeting the enemy's weak spot for an offensive up the western coast. The 7th Marines supported the Army by attacking enemy positions from the south and center, with Hanneken’s 3rd Battalion advancing along the high ground to the right rear of the 321st. After relieving the 1st Marines, Dark sent patrols up the coastal flat to Garekoru, encountering little opposition initially. However, Dark’s 2nd Battalion faced heavier resistance in the afternoon and had to retreat, postponing the northward advance until the next day. During the night, Inoue sent the remainder of the 2nd Battalion, 15th Regiment, and despite being shelled, most reinforcements reached Peleliu. By September 23, the Americans had secured important footholds on Peleliu and Angaur. However, intense fighting remained, with the 321st Regiment relieving the 1st Marines against Nakagawa’s fortified positions, while the 322nd Regiment continued to attack Goto’s defenses on the northwest hills. Yet that is it for the Palau’s as we now need to turn to Mortai.

General Persons’ troops quickly secured and expanded the island perimeter, successfully repelling the enemy's night raids with little difficulty. An example of these raids is the September 18 attack. This is the Japanese report: “On 18 September the main body of the 2nd Provisional Raiding Unit, which had moved into position along the upper Tjao, launched a strong night infiltration attack with the objective of disrupting the enemy's rear area in the vicinity of Doroeba and Gotalalmo. Although deep penetration of the enemy lines was achieved and considerable casualties inflicted, the attack failed to reduce the beachhead or to interfere with the enemy's rapid preparation of Doroeba airfield.” In truth, the Americans easily repelled this attack, suffering very few casualties. These raids would continue throughout September and October.

American engineers were busy constructing a new fighter strip at the Pitoe Drome area. This strip was scheduled to be ready for use by September 29 but was eventually abandoned and downgraded to an emergency field. A number of factors influenced the decision to abandon the site, which was renamed Pitoe Crash Strip. Japanese air reaction had been so ineffectual that the need for a fighter base on Morotai was not as urgent as had been expected. Aircraft based on escort carriers, some of which remained in the Morotai area for weeks, were able to keep away most of the Japanese planes, and their efforts were supplemented by long-range land-based fighters from Sansapor. Moreover, the line of approach which planes had to use to land on Pitoe Crash Strip interfered with that of the more important bomber base at Wama Drome. Finally, the terrain at the crash strip was by no means as well drained as that at other locations on the Doroeba Plain, and it was necessary to expend much engineer effort to keep the strip operational.

The new field, which acquired the designation Pitoe Drome, was located about 1,200 yards north of Wama Drome. Construction proceeded slowly at Pitoe Drome because so much engineer effort had to be devoted to the completion of Wama Drome. By 4 October almost 7,000 feet at the new site had been cleared, but it was not until the 17th, D plus 32, that even one runway was surfaced, let alone taxiways and dispersal lanes. Meanwhile, the construction of a new bomber field at Wama Drome faced significant delays due to heavy rainstorms and a shortage of suitable surfacing material. Despite almost constant struggles with soggy ground and tropical downpours, engineers managed to make 4,000 feet of Wama Drome operational by October 4. However, the overall progress on building Morotai’s new airbase, intended for the upcoming invasion of the Philippines, was slower than anticipated. Nevertheless, the Tradewind Task Force was disbanded on September 25, as the island was considered secure enough. General Hall then assumed command of the Morotai base as the commander of the 11th Corps. However, unbeknownst to the Americans, who believed the only possible Japanese response to the invasion was the ineffective air raids already carried out against them, troops in Halmahera were preparing to embark on a dangerous mission to reinforce Morotai and contest control of this key island.

In the meantime, after the successful invasion of the Palaus, new developments were unfolding on the Philippines front following Admiral Mitscher’s Task Force 38's recent successful strikes. These strikes had revealed an unexpected vulnerability in the enemy's air defenses, prompting Admirals Halsey and Nimitz to cancel the Yap operation, thereby freeing up many resources for the Philippines Campaign. Approximately 500 aircraft, or about 57% of the 884 believed to be in the Philippines, were rendered nonoperational or destroyed during these air attacks. Consequently, General MacArthur decided to cancel the preliminary Mindanao operations and instead make a direct jump from the Palaus-Morotai line to Leyte on October 20. Shortly after this change in schedule, MacArthur informed the Joint Chiefs that he could advance from Leyte to Luzon by December 20, two months earlier than planned. Meanwhile, the carrier raids on Mindanao and the Visayas strengthened the Southern Army command's belief that the Allies were preparing for an early invasion of the Philippines. As a result, Marshal Terauchi recommended accelerating the reinforcement of the Philippines, activating Operation Sho-Go, and authorizing the 4th Air Army to employ its main strength against enemy carrier task forces. This was in contrast to the current policy of not committing available air strength against enemy raiders, which was failing to conserve Japanese air power for a decisive battle. However, Tokyo denied these last two requests while also receiving concerning reports about General Kuroda’s neglect of his duties as field army commander. In the middle of September, IGHQ decided to replace General Kuroda with General Yamashita. Not only did General Kuroda have a concept of the Philippine operations that differed from that of his superiors, but he was charged with neglecting his duty as field army commander. Lt. Col. Yoshie Seiichi of the Personnel Bureau of the War Ministry, who had been sent to the Philippines to investigate personnel matters in the Southern Army, said of the incident: “Stories reached the War Ministry that Lt. Gen. Kuroda was devoting more time to his golf, reading and personal matters than to the execution of his official duties. It appeared that his control over staff officers and troops was not sufficiently strong and that there was a good deal of unfavorable criticism of his conduct among the troops. There were also indications that discipline was becoming very lax. On September 4, I left Tokyo under orders . . . to investigate. As a result I obtained many statements substantiating the unfavorable stories in regard to Lt. Gen. Kuroda. The recommendations of all the staff was that Lt. Gen. Kuroda be relieved as soon as possible, and be replaced by Gen. Yamashita . . . who was a superb tactician and excellent leader.” Random note, for those interested, over on my personal podcast at the Pacific War Channel I did a single episode covering how Yamashita became the Tiger of Malaya and plan to do more pieces on him as I find him to be one of the more interesting generals of the Pacific War.

Before an effective change in command could take place, the Japanese were about to experience a more dramatic display of Allied offensive power that they would soon encounter in the Philippines. On September 18, Mitscher’s Task Force 38 was ordered to head back toward the islands for a major strike against Luzon, the heart of Japanese control in the Philippines. The American carriers achieved complete surprise and successfully attacked Luzon three days later. Despite the fierce defense by approximately 42 Zeros, between 09:30 and 18:00 on September 21, four waves of over 400 aircraft targeted the harbor area and airfields around Manila with bombs and strafing runs. The assault on the harbor and shipping along the west coast resulted in the sinking or severe damage of 34 vessels totaling over 100,000 gross tons, while the raids on the airfields inflicted significant damage on grounded aircraft. At 0610 the following day, 22 September, search planes discovered the enemy carrier groups still lurking off the coast of Luzon, and at 0730 a hit-and-run attack was carried out by 27 Japanese aircraft, with reported bomb hits on two carriers and one cruiser. Naval air units at Legaspi attempted to carry out a second attack on the enemy carriers during the late afternoon, but the attack force of 19 planes failed to locate the carrier groups. Following the failed Japanese hit-and-run counterattack, Mitscher continued his assaults on Manila, destroying an estimated 110 aircraft in the air and 95 on the ground, and sinking or damaging 44 vessels. After the apparent withdrawal of enemy carriers, the Japanese decided to relocate their remaining ships in Manila Bay to other anchorages, many of which were directed to the secure docks of Coron Bay. However, Mitscher’s carriers returned on September 24 to launch further strikes against Luzon, including a raid by about 96 Hellcats and 24 Helldivers on Coron Bay, which resulted in the sinking or damaging of 10 more vessels. Additional attacks on other targets led to the sinking or damaging of 12 more ships.

Despite the ongoing air attacks, the Imperial Japanese Navy still deemed it premature to fully activate Operation Sho-Go, believing the decisive battle would take place in or after late October. Meanwhile, the Imperial Japanese Army accelerated its preparations to defend the Philippines. The reserve 1st Division was ordered to move to the islands immediately, and plans were made to assign ten surface raiding regiments to the area. On September 26, as plans for air reinforcement to the Philippines were being approved, General Yamashita was confirmed as the new commander of the 14th Area Army. He arrived in the Philippines on October 6 and found the situation "unsatisfactory," with poor planning for the Leyte campaign and many of his staff unfamiliar with the conditions in the Philippines. Lt. Gen. Makino Shiro, now commanding the 16th Division, which was the major force on Leyte, had directed his efforts since April 1944 toward the construction of defensive positions on the island. The first line of defense, which was on the east coast in the Dulag area, was practically completed by the middle of October. The third defensive line was in the middle of Leyte Valley in the vicinity of Dagami. The second line of defense was between the two others, while the bulk of supplies was assembled in the central mountain range at Jaro. The distribution of the other troops at the time of the American landings was as follows: one battalion of the 9th Infantry Regiment in the Catmon Hill and Tanauan district, and the main strength of the 33d Infantry Regiment in the Palo and Tacloban area. The larger part of the 33d Infantry Regiment, which was less adequately trained than the other regiments, had arrived on Leyte in mid-September from Luzon. Its officers were unfamiliar with the terrain and did not fortify their positions.

However, the supply situation was favorable, with Manila serving as the main Japanese depot in the region. Following established plans, he instructed his subordinates that the Area Army would "seek decisive battle on Luzon" while in the central and southern Philippines, the focus would be to delay the enemy's advance and prevent them from securing naval and air bases. However, the September air strikes had led to a noticeable increase in guerrilla activity and civil disorder due to widespread destruction and panic. Small Japanese garrisons were attacked, pro-Japanese Filipinos molested and intimidated, and communications disrupted. In central Luzon there were indications that some guerrilla units were planning a move to the Lamon Bay area in order to be the first to cooperate with an American landing force, and on Negros and Panay guerrilla raids on Japanese airfields became boldly persistent. The Fourteenth Area Army feared that, as soon as enemy forces landed, the guerrillas would not only give them direct assistance as scouts and guides, but seriously hamper Japanese operations by attacking rear communication lines. Consequently, martial law was declared across the archipelago in anticipation of enemy landings.

I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me.

Despite fierce and costly combat, American forces made significant advances in the Palaus, securing critical islands and establishing bases. The battle for Peleliu was marked by high casualties and intense fighting, with heavy losses on both sides. The successful capture of strategic locations like Ulithi Atoll and the subsequent strikes on Luzon further demonstrated Allied dominance and strategic planning in the Pacific Theater.

Last time we spoke about the invasion of Morotai. After capturing the Marianas and Sansapor, the Allies planned to invade the Palaus and Halmahera. The Japanese stationed the 14th Division at Palau and the 32nd Division at Halmahera. General Ishii, with 11,000 troops, defended Halmahera's nine airfields, while Major Kawashima led 500 Formosans on Morotai. Meanwhile Colonel Nakagawa commanded the forces at Peleliu with extensive defenses, emphasizing attrition tactics. The Allies planned Operation Stalemate for Peleliu and Angaur, with General Geiger's corps set to land on September 15. Aerial reconnaissance and submarine missions informed their strategy. At Morotai, Operation Tradewind was executed by General Krueger’s 31st Division. Supported by air and naval bombardment, Allied troops swiftly secured key areas, encountering minimal Japanese resistance. These operations were part of broader Allied strategies involving coordinated air support and subsequent invasions in the region.

This episode is the Invasion of the Palau Islands

Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more  so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945. 

In last weeks episode we talked about the plans and preparations for the invasion of Palau. General Rupertus’ 1st Marine Division was assigned to assault Peleliu while General Mueller’s 81st Division would conduct a dual-pronged landing on Angaur. Meanwhile, Admiral Hoover’s land-based aircraft, General Kenney’s Allied Air Forces, and Admiral Mitscher’s carrier-based aircraft carried out an extensive neutralization program against Japanese airfields within range of Palau. When fighter planes of three fast carrier groups started sweeping over the Palaus on September 6, they found that the efforts of the Southwest Pacific's land-based bombers had succeeded in eliminating many ground targets. Nevertheless, fighters and bombers of the three groups started full-scale attacks on all the principal islands in the Palaus the next day. There was no air opposition, nor had there been any on the 6th. On the 8th, because observable targets were scarce, the weight of attack was reduced, and the carriers began preparing to move to Philippine waters. During their three days at the Palaus, the carrier-based planes flew about 1470 sorties, causing extensive damage to ammunition and supply dumps, barracks, warehouses, and a number of miscellaneous buildings. The groups claimed destruction of only four enemy aircraft, while losing eight of their own.

Admiral Fort’s slower-moving tractor groups, responsible for transporting both divisions to the islands, departed Guadalcanal with their respective screening forces on the morning of September 4. Four days later, fast transports and LSDs also set out to rendezvous with them in the early hours of September 15 after an uneventful voyage. In the interim, Admiral Davison’s carrier group launched a final sweep over the Palaus on September 10. The next day, Rear Admiral Jesse Oldendorf’s Western Fire Support Group and Rear Admiral Ralph Ofstie’s escort carriers arrived to begin the naval gunfire bombardment. Over the following three days, approximately 2,200 tons of naval projectiles were successfully fired on Peleliu. While Japanese positions pinpointed by the fire support ships were generally destroyed, many hidden by natural or man-made camouflage remained intact, as did those in areas not accessible to naval gunfire. Minesweepers cleared the 670 mines laid by the Japanese in the Peleliu-Angaur region and at least 240 more in the Kossol Passage. Nearly 175 mines were destroyed in the four days leading up to the landings, with the remaining mines marked at the cost of one minesweeper. Underwater demolition teams also began clearing obstacles from the landing beaches on September 12, providing the Japanese with clues about the Allied landing plans, leading them to hastily lay many land mines in the last few days.

By 05:15 on September 15, Fort’s transports had finally gathered off the Palaus and taken their assigned positions in the transport areas, ready for the landings to begin. Under clear skies, the small craft and amphibian vehicles of the assault waves formed up without difficulty and moved toward the reefs in front of Peleliu’s White and Orange Beaches. At 05:30, Oldendorf’s cruisers and destroyers started the pre-landing bombardment of the beaches, which was scheduled to cease at 07:50 to allow the carriers to conduct a final sweep. Ten minutes later, the first assault wave began advancing, supported by an LCI rocket barrage and aerial strafing attacks. However, the pre-landing bombardment had been inefficient, leaving many Japanese positions intact. Artillery and mortar fire quickly targeted the American amtracs, with several LVTs taking direct hits. Approximately 26 were destroyed during the landings, their burning hulks cluttering the beaches. Despite the smoke from Japanese fire and burning amtracs, the first wave reached the shore at 08:32. Colonel Chesty Puller’s 1st Marines landed on the left, Colonel Harold Harris’ 5th Marines in the center, and Colonel Herman Hanneken’s 7th Marines on the right. For those of you interested, a rather famous marine was with Harris’s 5th marines this day. Serving with K Company, 3rd battalion, 5th Marines was Eugene Sledge, the author of “with the Old Breed” probably the most famous Pacific War book of all time. If you are a fan of the HBO series: the Pacific, it was based loosely off this book amongst others. I think overall with the Old Breed does an outstanding job, particularly for when it was written, to showcase the brutal reality of the war in the Pacific. Eugene Sledge did not sugar coat things or gloss over terrible things he saw his fellow marines do, such as ripping out gold teeth from dead or even alive Japanese as well as taking human trophies like skulls or hands. Here is a passage:

We learned that our battalion would leave Peleliu as soon as a ship was available to transport us back to Pavuvu. By day we rested and swapped souvenirs, but we had to be on the alert at night for possible Japanese movement. To the south we could hear the constant rattle of machine guns and the thud of mortars and artillery as the 81st Infantry Division kept up the pressure around the Umurbrogol Pocket. “Have you gone Asiatic?” I gasped. “You know you can't keep that thing. Some officer'll put you on report sure as hell,” I remonstrated as I stared in horror at the shriveled human hand he had unwrapped. “Aw, Sledgehammer, nobody'll say anything. I've got to dry it in the sun a little more so it won't stink,” he said as he carefully laid it out on the rock in the hot sun. He explained that he thought a dried Japanese hand would be a more interesting souvenir than gold teeth. So when he found a corpse that was drying in the sun and not rotting, he simply took out his kabar and severed the hand from the corpse, and here it was, and what did I think? “I think you're nuts,” I said. “You know the CO will raise hell if he sees that.” “Hell no, Sledgehammer, nobody says anything about the guys collecting gold teeth, do they?” he argued. “Maybe so,” I said, “but it's just the idea of a human hand. Bury it.” He looked grimly at me, which was totally out of character for his amiable good nature. “How many Marines you reckon that hand pulled the trigger on?” he asked in an icy voice. I stared at the blackened, shriveled hand and wondered about what he said. I thought how I valued my own hands and what a miracle to do good or evil the human hand is. Although I didn't collect gold teeth, I had gotten used to the idea, but somehow a hand seemed to be going too far. The war had gotten to my friend; he had lost (briefly, I hoped) all his sensitivity. He was a twentiethcentury savage now, mild mannered though he still was. I shuddered to think that I might do the same thing if the war went on and on

Its a gripping read, highly recommend it, especially for quote en quote normie friends you might want to get into the Pacific War. Back to the story.Rupertus’ objectives for the first day were to push inland 300 yards to objective line O-1, then attack and capture O-2. Landing simultaneously with the fourth wave were the division's tanks (M-4 Shermans). Because of their excellent waterproofing for the operation, they successfully negotiated the reef, where the worst of the underwater obstacles had been removed by UDTs, and continued toward land in six parallel columns led by their respective LVT guides. The enemy fire, however, proved so intense that over half of 30 tanks organic to the division suffered from one to four hits during the 10 minutes necessary to cross the reef. In the 1st Marines' zone, for example, only one of the assigned tanks escaped being hit during the trip ashore. only three, however, were completely knocked out of action. "Thus within a half hour after the initial landing the infantry had full tank support--a record unsurpassed in any previous Marine landing in the Central Pacific, except for the Marshalls."

To make matters worse, no sooner had the lead elements of 3/1 landed and advanced less than 100 yards inland, than they found themselves confronted by a most formidable natural obstacle, a rugged coral ridge, some 30ft high. This had not shown up on any maps. Worse, the face of this ridge (christened "The Point" by the Marines) was honeycombed with caves and firing positions which the Japanese had blasted into the coral and had turned into excellent defensive positions which resisted all initial assaults. Even after tanks arrived to support the assault troops attempting to storm the northern portion of the ridge, they stumbled into a wide, deep anti-tank ditch, dominated by the ridge itself. Here they came under severe and accurate enfilading fire and were pinned down for hours.

The loss of much communication equipment further left Puller and Rupertus unaware of the situation on the left flank. A major effort was then launched to assault The Point from the rear.  It became apparent to the Marines that The Point was unassailable from the front and so eventually units fought inland and assaulted The Point from the rear. These units, commanded by Capt George P. Hunt, fought their way along The Point for nearly two hours, during which time they succeeded in neutralizing all of the enemy infantry protecting the major defensive blockhouses and pill boxes. The principal defense installation was a reinforced concrete casement built into the coral, mounting a 25mm automatic cannon, which had been raking the assault beaches all morning. This blockhouse was taken from above by Lieutenant William L. Willis, who dropped a smoke grenade outside the blockhouse's embrasure, to cover the approach of his men, and Corporal Anderson who launched a rifle grenade through the firing aperture. This disabled the gun and ignited the ammunition inside the blockhouse. After a huge explosion, the fleeing Japanese defenders were mown down by waiting Marine riflemen.

Hunt's surviving 32 men remained isolated on The Point for the next 30 hours, constantly under attack from Japanese infiltrators. Meanwhile, Puller's 2nd Battalion pushed inland about 350 yards against moderate resistance. Despite this success, the 1st Marines' front was divided by two huge gaps. Puller's 1st Battalion was then committed to support the Marines on the left, successfully gaining a foothold on the southern area of The Point, but still unable to close the critical gaps. In the center, Harris' 1st Battalion advanced through coconut groves that provided ample cover, successfully reaching O-1 to link up with Puller's 2nd Battalion in front of the airfield by 09:30. On the right, however, Harris' 3rd Battalion and Hanneken's 3rd Battalion experienced a confused landing and made no progress, with only Harris' Company I reaching O-1 an hour after landing. At 10:30, the two battalions began pushing inland. Harris' Company K rapidly advanced deep into Peleliu's interior under the cover of fairly dense scrub, while the 7th Marines used a large anti-tank ditch to move forward in relative safety.

Again I thought it give more flavor if I took a passage from this moment when K Company advanced from Sledge: 

We started to move inland. We had gone only a few yards when an enemy machine gun opened up from a scrub thicket to our right. Japanese 81mm and 90mm mortars then opened up on us. Everyone hit the deck; I dove into a shallow crater. The company was completely pinned down. All movement ceased. The shells fell faster, until I couldn't make out individual explosions, just continuous, crashing rumbles with an occasional ripping sound of shrapnel tearing low through the air overhead amid the roar. The air was murky with smoke and dust. Every muscle in my body was as tight as a piano wire. I shuddered and shook as though I were having a mild convulsion. Sweat flowed profusely. I prayed, clenched my teeth, squeezed my carbine stock, and cursed the Japanese. Our lieutenant, a Cape Gloucester veteran who was nearby, seemed to be in about the same shape. From the meager protection of my shallow crater I pitied him, or anyone, out on that flat coral

Hanneken soon faced strong opposition, leading him to pause his troops and request tank support in the afternoon. The requested tank support became somewhat confused by an unexpected coincidence: the flank battalions of the two assaulting regiments in the center and right were both the 3rd (3/5 and 3/7) with both containing Companies I, K, and L. The unfortunate tank commanders looking for 3/7 who had wandered into 3/5 area due to obstacles - in particular the large anti-tank ditch on Orange 3 - enquired of a body of troops they encountered "is this Company I, 3rd Battalion?" Hearing the right answer in the wrong place, they proceeded to operate with these troops, who were in fact Company I of 3/5 and not Company I of 3/7. Happily, this was one of those confusions of battle that helped more than it hindered. The confusion resulted in a gap between the two regiments as 3/7 paused to take stock of the situation, whereas 3/5 was actually pushing ahead. In an effort to re-establish contact with 3/5, Company L of the 7th Marines worked patrols further and further to the left until its foremost patrol emerged on the southern edge of the airfield. This was completely out of its regimental zone of action and several hundred yards to the rear of the units it was looking for.

By this time, Harris’ 2nd Battalion and Hanneken’s 1st Battalion had landed, with Harris’ battalion pushing vigorously northeast, while Hanneken’s battalion dealt with fierce Japanese resistance and a dense swamp to the south as they advanced toward O-1. Concerned about the slow progress on the right and the heavy casualties suffered by Hanneken’s forces, Rupertus decided to land the divisional reconnaissance company. However, the reserve 2nd Battalion, 7th Marines could not be disembarked until the next day. 

One major Japanese counterattack occurred at around 16:50hrs on D-Day, consisting of a tank-infantry sortie in force across the northern portion of the airfield. This attack had been expected by the Marines, especially those of the 5th Marines facing open ground in front of the airfield, and accordingly the regimental commanders had brought up artillery and heavy machine guns as well as tanks to support that area. Increase in Japanese artillery and mortar fire in that area was the first indication that something was brewing. Soon after Japanese infantry was observed advancing across the airfield, not as a fanatical, drunken banzai charge but as a coolly disciplined advance of veteran infantrymen. A Navy air observer spotted Japanese tanks forming east of the ridges above the airfield with more infantry riding on them. These tanks moved forward, passing through the Japanese infantry advancing across the airfield and some 400 yards in front of the Marine lines. For a moment, but only for a moment, the Japanese counter-attack looked like a serious coordinated movement. Then the formation went to pieces. Inexplicably, the Japanese tank drivers opened their throttles wide and raced towards the Marine lines. Charging like the proverbial "Bats outa Hell," with the few infantry atop the tanks clinging on for dear life, they left their accompanying infantry foot support supp far behind. No positive account exists of what happened thereafter. The tanks involved in the charge numbered between 13 and 17 (insufficient pieces were left afterwards to give a definite count) and headed for the Marine lines, cutting diagonally across the front of 2/1, who subjected them to murderous flanking fire from all weapons, small arms, light and heavy machine guns, 37mm antitank guns and artillery. Two of the Japanese tanks veered off into the lines of 2/1, hurtling over a coral embankment and crashing into a swamp, the escaping crews were quickly disposed of by the Marines. Meantime, the remaining tanks came under heavy fire from the marines of 1/5, while the advancing Japanese infantry was subjected to fire and bombing from a passing Navy dive bomber. The tanks and their riding infantry were decimated as they passed right through the Marine lines which simply closed behind them.

At 17:00, a heavy mortar barrage struck Harris’ 3rd Battalion’s command post, causing the Marine companies to lose cohesion, though they eventually formed a defensive line along the airfield's edge. Under this barrage Eugene Sledge had this to say:

Under my first barrage since the fast-moving events of hitting the beach, I learned a new sensation: utter and absolute helplessness. The shelling lifted in about half an hour, although it seemed to me to have crashed on for hours. Time had no meaning to me. (This was particularly true when under a heavy shelling. I never could judge how long it lasted.) Orders then came to move out and I got up, covered by a layer of coral dust. I felt like jelly and couldn't believe any of us had survived that barrage.

By the end of the day, despite 210 men killed and 901 wounded, the progress of the beach expansion was disappointing. Again Eugene Sledge has a passage about getting through the first heat of combat on D-day at Peleliu:

We had to be alert constantly as we moved through the thick sniper-infested scrub. We received orders to halt in an open area as I came upon the first enemy dead I had ever seen, a dead Japanese medical corpsman and two riflemen. The medic apparently had been trying to administer aid when he was killed by one of our shells. His medical chest lay open beside him, and the various bandages and medicines were arranged neatly in compartments. The corpsman was on his back, his abdominal cavity laid bare. I stared in horror, shocked at the glistening viscera bespecked with fine coral dust. This can't have been a human being, I agonized. It looked more like the guts of one of the many rabbits or squirrels I had cleaned on hunting trips as a boy. I felt sick as I stared at the corpses. A sweating, dusty Company K veteran came up, looked first at the dead, and then at me. He slung his M1 rifle over his shoulder and leaned over the bodies. With the thumb and forefinger of one hand, he deftly plucked a pair of hornrimmed glasses from the face of the corpsman. This was done as casually as a guest plucking an hors d'oeuvre from a tray at a cocktail party. “Sledgehammer,” he said reproachfully, “don't stand there with your mouth open when there's all these good souvenirs laying around.” He held the glasses for me to see and added, “Look how thick that glass is. These sonsabitches must be half blind, but it don't seem to mess up their marksmanship any.” He then removed a Nambu pistol, slipped the belt off the corpse, and took the leather holster. He pulled off the steel helmet, reached inside, and took out a neatly folded Japanese flag covered with writing. The veteran pitched the helmet on the coral where it clanked and rattled, rolled the corpse over, and started pawing through the combat pack. The veteran's buddy came up and started stripping the other Japanese corpses. His take was a flag and other items. He then removed the bolts from the Japanese rifles and broke the stocks against the coral to render them useless to infiltrators. The first veteran said, “See you, Sledgehammer. Don't take any wooden nickels.” He and his buddy moved on. I hadn't budged an inch or said a word, just stood glued to the spot almost in a trance. The corpses were sprawled where the veterans had dragged them around to get into their packs and pockets. Would I become this casual and calloused about enemy dead? I wondered. Would the war dehumanize me so that I, too, could “field strip” enemy dead with such nonchalance? The time soon came when it didn't bother me a bit.

During the night, coordinated local counterattacks were repelled with relative ease, thanks to the support from naval gunfire and the artillery of the 11th Marines. However, the enemy’s resistance, which was not the frenzied banzai charges of previous encounters, began to suggest that the prolonged and organized opposition Rupertus had anticipated might indeed persist for a longer time. Meanwhile, with the 3rd Battalion, 15th Regiment cut off to the south, Nakagawa chose to withdraw most of his forces to the ridgelines and high ground north of the airfield, aiming to hold out as long as possible. The 1st Marine Division, enduring a night of harassment from Japanese mortar and artillery fire, faced heavy resistance from these ridgeline defenses on September 16. Despite this, after landing on Peleliu at 09:50, Rupertus made significant progress that day. His only adjustment was to order the reserve 2nd Battalion, 7th Marines to support Puller’s beleaguered 1st Marines to "maintain momentum." On the right flank, the 7th Marines pressed their hold on the southern part of the island despite heavy resistance and thick scrub, capturing all but two small promontories at the southern tip, where isolated defenders established their final positions. In the center, the 5th Marines cleared most of the remaining airfield area and set up defenses at night in a hangar and shop area on the field’s north side, while Puller’s 2nd Battalion secured the northwestern section of the airfield, including several headquarters buildings and barracks.

On the left flank, the 1st Marines struggled to advance against the determined and well-coordinated resistance from Nakagawa’s main defenses, which were concentrated around the Umurbrogol Mountains. Only after intense fighting and with the help of tanks did the Marines manage to capture a 500-yard stretch of the ridge. By nightfall, at the cost of approximately 30 additional men killed and 115 wounded, the division had established a perimeter extending over 3,000 yards from north to south, and about 2,000 yards deep at its farthest point. Over the course of two days, the Americans suffered nearly 1,500 casualties, with more than 1,000 from Puller’s 1st Marines alone. Despite these losses, the crucial objective—the Peleliu airfield area—had been secured. The Japanese defenses had been divided, with two small pockets in the south and the main stronghold in the central ridges. Feeling that operations were progressing well and possibly aiming to keep Peleliu an all-Marine endeavor, Rupertus decided not to request reinforcements from the 81st Division. Consequently, General Mueller’s forces were set to proceed with landings on Angaur the next day. Rear-Admiral William Blandy, commanding the Angaur Attack Group, reported that based on air and naval bombardments, hydrographic surveys, and UDT activities, a successful landing on Angaur appeared achievable. Admiral Fort and General Geiger thus approved the decision. Meanwhile, Major Goto Ushio had stationed his 1,400 men from the reinforced 1st Battalion, 59th Regiment in four defensive sectors with a small reserve in the center.

Expecting the Americans to land on the well-prepared Green Beaches to the southeast, he had fortified that area with his strongest coastal defenses. However, the Americans anticipated this and chose instead to land Colonel Benjamin Venable’s 322nd Regiment on Red Beach to the north and Colonel Robert Dark’s 321st Regiment on Blue Beach to the east. In the early hours of September 17, Blandy positioned his forces off Angaur and at 0530 the Angaur Fire Support Group started its bombardment, employing for the most part slow, methodical area fire rather than shooting at specific targets. The fire was characterized by the 81st Division as being "very satisfactory," and it accounted for about 40 percent of all naval shells thrown at Angaur from 12 through 17 September. 

Due to a delay in the arrival of support aircraft, the shore bombardment continued past the scheduled time while General Mueller’s assault troops boarded the landing craft and amphibian vehicles meant to take them ashore. By 08:00, the LVT assault waves began positioning themselves at the line of departure, while the 323rd Regiment executed a feint at Green Beach to distract the Japanese from the actual landing sites. Ten minutes later, the assault waves moved toward the shore, supported by LCI rocket fire, ongoing bombardments, and strafing planes that had also arrived late. Despite encountering only light mortar and small-arms fire, Dark’s forces successfully landed on Blue Beach at 08:31, just one minute behind schedule. Venable’s first wave, however, was delayed and arrived at Red Beach six minutes late. Subsequent waves landed throughout the day amid light resistance but faced challenges such as traffic congestion and limited beach space. By 16:45, all tanks of the 710th Tank Battalion were ashore, and the 316th and 906th Field Artillery Battalions had successfully landed at Red Beach by nightfall. The artillery for Blue Beach was landed the following day. Additionally, Venable’s reserve 2nd Battalion landed by 11:30, and Dark’s reserve 1st Battalion arrived by 13:00.

After landing, Mueller’s green regiments began advancing inland about 300 yards to their first phase line, quickly becoming entangled in dense scrub forests teeming with Japanese machine guns and snipers. On Blue Beach, Dark’s troops proceeded cautiously at first, but by noon they had secured Rocky Point, Cape Ngariois, and established a beachhead approximately 1200 yards long and 350 yards deep. Meanwhile, Venable’s 1st Battalion moved swiftly north and inland through less dense undergrowth to secure its designated beachhead area. The 3rd Battalion bypassed some enemy bunkers set in jagged coral and proceeded south and west, successfully linking up with the 1st Battalion but falling short of reaching Cape Ngatpokul. With two secure beachheads and a 700-yard gap along the first phase line between regiments, Mueller ordered the 322nd Regiment to extend its right flank onto the second phase line about 400 yards inland and to continue pushing south with its left flank towards the sister regiment. By 14:30, the advances resumed, with Venable’s 1st Battalion pushing westward against light resistance into increasingly rough terrain along the coast and into a densely overgrown basin near the north end of Lake Aztec. Meanwhile, the 3rd Battalion engaged in patrol actions against isolated Japanese positions to secure the coastal area between the two landing beaches, though little progress was made. Dark’s forces also struggled, hindered by difficult terrain and mounting Japanese resistance.

Ignoring the gap between regiments, Mueller ordered Venable’s 3rd Battalion to advance to the second phase line. The battalion moved along railroad beds without encountering opposition, reaching the objective by nightfall. Simultaneously, Dark attempted to advance to the second phase line but made little progress before having to dig in. Goto, on the other hand, chose not to launch an immediate mass counterattack, believing that the 81st Division might land at other beaches. Instead, he deployed a company-strength mobile reserve for a counterattack, but this effort was disrupted by air and naval gunfire before it could commence. By late afternoon, realizing that the Americans had firmly established themselves ashore, Goto began moving his units and withdrew the southern defense force to the northwest hills for a final stand. To cover this movement, he ordered a night counterattack by two companies. At 05:50 on September 18, enemy infantry emerged from cover below Rocky Point and attacked Dark’s Company B, pushing the Americans back about 75 yards before being halted by a heavy concentration of fire. Meanwhile, small groups of Japanese forces repeatedly assaulted the defensive line south of Lake Aztec, near the boundary between the 1st and 3rd Battalions. Despite their efforts, they failed to exploit the gap between regiments and withdrew to the northwest hills shortly after dawn.

I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me.

Thus the Marines were yet again storming new islands that would see them experience some of the worst horrors of WW2. A young enlisted man, Eugene Sledge would get his first experience of combat on Peleliu, and from there would begin to write a book that would captivate the minds of many in America, post WW2.

Last time we spoke about the end of Operation Dan. In Yunnan, by late July, General Wei's Y Force worked to eliminate Japanese garrisons at Tengchong, Mount Song, Pingda, and Longling. The 33rd Army prepared for Operation Dan, anticipating resistance from General Honda's garrisons until September. The fall of Myitkyina prompted Honda to expedite his plans. Reinforcements were expected in Mandalay by September. General Matsuyama's forces, cut off and surrounded, provided support only through radio messages. At Tengchong, Colonel Kurashige vowed to defend against relentless attacks. Chinese forces, after intense fighting and bombing raids, breached the city's defenses. Despite heavy casualties, the Japanese resisted fiercely. Major Kanemitsu’s garrison defended Moung Song with dwindling supplies. The Chinese forces employed siege tactics and underground mines to break Japanese strongholds. The Chinese launched coordinated attacks, capturing key positions and ultimately compelling Japanese retreats. 

This episode is the Invasion of Morotai

Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more  so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945. 

After the Marianas fell and Sansapor was captured, the Allies set their sights on their next objectives: the Palaus and Halmahera, slated for simultaneous invasion by mid-September. The Japanese had stationed the 14th Division at Palau and the 32nd Division at Halmahera as their primary defenses. The Halmahera-Morotai area had not assumed much importance to the Japanese until early 1944, when they began to develop Halmahera as a focal point for the defense of the southern approaches to the Philippines. In addition to the 32d Division, the Japanese had on Halmahera innumerable service organizations, and they completed or had under construction nine airfields on the island, most of them in northern Halmahera. On that island they concentrated nearly 30,000 men, including at least 11,000 combat troops. 

On Halmahera, General Ishii commanded approximately 11,000 troops to safeguard nine airfields, despite having already lost most of their air power. Meanwhile, Morotai Island was defended by around 500 Formosans of the 2nd Raiding Unit, led by Major Kawashima Takenobu. General Ishii planned to counterattack from Halmahera if the Allies landed on Morotai, but soon realized Allied air and naval superiority would foil these efforts. Following their defeat in the Marianas, Tokyo reassigned the Bonin Area Group directly under its command and placed the Palau Area Group under the Southern Army, leaving General Mugikura’s 31st Army to defend Truk and other isolated outposts. General Inoue fortified Palau with elaborate defenses along the coast and inland, manned by 21,000 Imperial Japanese Army (IJA) troops, 7,000 Imperial Japanese Navy (IJN) personnel, and 10,000 laborers. 

The IJN had by 1944 constructed numerous reinforced concrete blockhouses and bunkers plus dug an extensive tunnel system near the end of the northeast peninsula as well as taking full advantage of Peleliu's natural caves. This elaborate, multi-level tunnel system could shelter 1000 troops. These defenses, tunnels, the airfield, and the many support facilities were built by the 204th, 214th, and 235th Construction Battalions, mostly manned by Koreans and Okinawans. Detachments of the guard forces manned eight 120mm dual-purpose, and about three 200mm coast defense guns. There was no ammunition for the 200mm short guns nor did any ships report being fired on by coast defense guns. The 114th and 126th Anti-aircraft Units manned single and twin-barreled 25mm automatic guns (estimated at 30) and 13.2mm machine guns. A dozen 20mm cannons, removed from destroyed aircraft, were set up on makeshift mounts, mostly around the airfield. His strategy emphasized prolonged attrition over suicidal charges, aiming to exhaust the American forces. In preparation for the intense pre-landing bombardment, Inoue instructed his troops to utilize natural terrain features like coral caves and sinkholes, tactics that proved effective against the advancing Allies.Based in Koror, the Japanese commander stationed Colonel Nakagawa Kunio’s 2nd Regiment on Peleliu, the reinforced 1st Battalion of the 59th Regiment on Angaur, and deployed the 15th and 59th Regiments across Babelthuap and other islands. Major-General Yamaguchi Takeo’s 53rd Independent Mixed Brigade defended the central islands, complemented by 4,000 personnel from the Imperial Japanese Navy on Peleliu. 

Prior to General Inoue’s arrival in the Palaus, the defense of the Palaus had been under the command of Vice-Admiral Ito Yoshioka. Upon his arrival on Koror, where he established his headquarters, Inoue appointed Colonel Nakagawa Kunio as Peleliu's new commander, with his 2nd Regiment (Reinforced). Nakagawa was a most able commander, possibly one of Japan's finest defensive tacticians, in the same league as General Kuribayashi on Iwo Jima. Nakagawa would make full use of all his defenses and troops on Peleliu, making the Americans pay dearly for every inch, as he had been ordered to do. Although a very capable commander, the appointment of an Army colonel over a Navy vice-admiral caused a great rift between the Army and Navy on Peleliu, which deteriorated into farce. To resolve matters and calm the Navy down somewhat, Inoue sent Major-General Murai Kenjiro from his headquarters on Koror Island to Peleliu to provide the Army with sufficient rank to satisfy the vice-admiral's honor, although the defense of Peleliu seems, to practical purposes, to have remained in the hands of Nakagawa. It appears that Murai, after inspecting Nakagawa's defensive works and battle plans for the defense of Peleliu, was content to let Nakagawa continue without interference from himself, lending only the weight of his rank to acquire the required cooperation of the Navy elements on Peleliu.

Nakagawa, divided the island into four defense sectors, each manned by an infantry battalion. His 1st Battalion, alongside the 14th Division Tank Unit and Engineer Company, served as a mobile reserve for counterattacks against potential landings. Meanwhile, Admirals Nimitz and Halsey had been planning Operation Stalemate, targeting Palau since May 29. Originally slated for September 8, General Geiger’s 3rd Amphibious Corps would assault Peleliu and Angaur, with General Hodge’s 24th Corps landing on Babelthuap. 

Intelligence was gathered by aerial reconnaissance photographs. Also, in June 1944 the submarine USS Seawolf (SS-197) carried out photographic reconnaissance of the invasion landing beaches. A further reconnaissance was carried out by the submarine USS Burrfish (SS-312) on Peleliu and Yap beaches. An 11-man reconnaissance group of underwater demolition team (UDT) frogmen landed on the Peleliu beaches from the Burrfish for closer investigation relating to water depth, location of potholes and sandbars, and obstacles. With thousands of Japanese on the island they understandably did not reconnoiter inland, and the rugged terrain of the interior would come as an unpleasant surprise to the Marines. A similar operation was carried out on the Yap invasion beaches, but this time only two of a five-man reconnaissance team made it back to the pick-up point. After several unsuccessful attempts to locate their missing comrades the remaining two men returned to the Burrfish. After this incident, Admiral Nimitz banned any further missions of this type. Given delays in the Guam operation, Operation Stalemate was canceled on July 7, replaced by Stalemate II. 

An unusual staff arrangement was established to plan Stalemate II. IIIAC was committed to take Guam under General Geiger. The IIIAC staff would thus be unable to plan the Palaus operation, which it was to execute. Consequently, Major General Julian Smith, designated to command the Expeditionary Troops, was tasked to plan the operation using his own small staff augmented by some IIIAC staff officers. This temporary planning staff was designated X-Ray Provisional Amphibious Corps. It would plan the operation and IIIAC would execute it – an awkward arrangement, but necessary in order to maintain the increasing tempo of operations. As Commander, Expeditionary Troops, Smith was also to be in control of all ground action in the western Carolines; a position roughly analogous to that of General Krueger of ALAMO Force in the Southwest Pacific. X-Ray was finally dissolved on August 15, 1944. This revised plan scheduled Geiger’s forces to land on Peleliu with the 1st Marine Division and on Angaur with the 81st Division on September 15, while the 77th Division remained in floating reserve and the 5th Marine Division in area reserve.

Then, on October 8th, the 24th Corps planned to launch an assault on the islands of Yap and Ulithi in the western Carolines. This was aimed at securing an additional airfield and fully neutralizing Truk and the remaining islands in the group. For this operation, Halsey divided his 3rd Fleet into two main echelons: his Task Force 30, which included covering forces such as Admiral Mitscher’s Fast Carrier Task Force (now Task Force 38), and Admiral Wilkinson’s Task Force 31, the Joint Expeditionary Force. At Peleliu, General Rupertus’ 1st Marine Division was to land with five battalions advancing over the White and Orange Beaches on the southwest coast. The 1st Marines were to land on the left, pushing up the western shore to clear Japanese forces from ridges overlooking the airfield; the 5th Marines would land in the center to secure the airfield; and the 7th Marines on the right to capture the southern end of the island. Meanwhile, at Angaur, Major-General Paul Mueller’s 81st Division planned a two-pronged amphibious assault. The 322nd Regiment was to land on Red Beach on the northeast coast, while the 321st Regiment would land on Blue Beach about 2000 yards to the southeast. Both forces would then push inland to secure a first phase line approximately 300 yards from the beaches, before continuing their advance west and south. The reserve 323rd Regiment was tasked with a feint landing at Beach Black on the northwest coast, with potential deployment to Ulithi if the Palau operations proved successful.

Meanwhile, General MacArthur aimed to establish an airbase in the Halmahera area, strategically positioned between the Vogelkop and Mindanao. This location would provide crucial flank protection against Japanese forces in the Dutch East Indies and support land-based operations for the upcoming invasion of Mindanao. Optimistically, in mid-June, MacArthur had tentatively scheduled the invasion of Mindanao for October 25. Nimitz, however, believed that MacArthur's hope of reaching Mindanao by October 25 was too optimistic. During conferences at Pearl Harbor in July, called at the suggestion of Nimitz to coordinate Southwest and Central Pacific plans for the Morotai, Palau, and Mindanao operations, Southwest Pacific planners learned that less amphibious craft and assault shipping could be made available to them than had previously been anticipated. Moreover, restudy of range and weather factors made it appear somewhat risky to depend upon the ability of Morotai-based aircraft to provide air support for Southwest Pacific forces on Mindanao after carriers had to leave the latter area and before airdromes could be developed there. To obtain adequate land-based air support for the Mindanao invasion force, MacArthur returned to discarded plans to seize air-base sites on the Talaud Islands, about equidistant from Morotai and Sarangani Bay, Mindanao, where the first landings in the Philippines were then scheduled to take place. The employment of amphibious means for the Talaud operation would delay preparations for Mindanao, as would the development of airdromes on the Talauds. Finally, to have the invasion of Mindanao take place much before the middle of November would involve a conflict in timing with anticipated employment of assault shipping and carrier support by Admiral Nimitz for the occupation of Yap and Ulithi in the western Carolines, an operation scheduled for the first week in October. MacArthur therefore revised his program to call for the invasion of Morotai on September 15, the Talauds on October 15, and Mindanao on November 15.

As Allied carriers were engaged in the Palau operation, MacArthur needed a target within range of fighters and medium bombers stationed at Sansapor. Thus, Morotai Island was chosen for Operation Tradewind due to its perceived light defenses and ample space for airfield and light naval base facilities. General Krueger selected the 31st Division and the 126th Regiment, totaling approximately 28,000 troops under the overall command of General Hall's 11th Corps, for this operation. Admiral Barbey's Task Force 77, comprising 12 destroyers, 2 APAs, 5 APDs, 1 LSD, 39 LCIs, 12 LSTs, and 12 LCTs, along with a covering force led by Admiral Berkey and an escort carrier force under Rear-Admiral Thomas Sprague, facilitated the amphibious movement. Additionally, Vice-Admiral John McCain's fast carrier group provided support. Anticipating minimal resistance, the landings were planned near prospective airfield sites on the Doroeba Plain in southwest Morotai. General Hall's strategy involved the 155th and 167th Regiments landing on Red Beach on the southwestern coast to swiftly capture the abandoned Pitoe Drome and secure the new Pitoe Airfield site. Meanwhile, the 124th Regiment landed at White Beach, about 1500 yards to the south, to secure the Gila Peninsula and the Wama Airfield site. The reserve 126th Regiment was scheduled to land the following day, with its 1st Battalion initially supporting the 124th Regiment's operations at the beachhead.

Both the Palau and Morotai operations were supported by a coordinated strategic air support program. Admiral Hoover's land-based aircraft were tasked with neutralizing Japanese airfields at various islands including Yap, Woleai, Truk, Ponape, Pagan, Bonin, and Marcus Islands. Concurrently, General Kenney's Allied Air Forces reinforced these efforts and targeted enemy air centers in Palau, Mindanao, western Dutch New Guinea, Halmahera, the Talaud Islands, the Moluccas, the Celebes, and the Arafura Sea islands. Additionally, Mitscher’s fast carriers embarked on an ambitious campaign, launching strikes from the Bonin and Volcano Islands to the Palaus and Mindanao between late August and the start of the invasions. 

This strike had a twofold objective: the temporary neutralization of Japanese airfields on those island groups and, more important, the creation of a diversion on the north preceding stronger attacks against targets in the Philippines and western Carolines. Carrier action in the latter area was to begin on 6 September, with strikes on the Palaus, Yap, and Ulithi. The bulk of the carrier forces was to leave the western Carolines on the afternoon of the 8th to take up positions off Mindanao. Japanese airfields on Mindanao presented difficult targets because they were scattered over that large island, but it was believed that the cluster of airfields and associated installations in the Davao area would provide profitable targets for carrier-based aircraft attacks. The Davao and Sarangani Bay areas, as well as Japanese shipping routes from Davao to Zamboanga and thence north toward Manila, were also expected to provide profitable targets. Strikes against airdromes and shipping in the Mindanao area were to be carried out on 9 and 10 September, while on the 10th and 11th part of the carrier force was to hit the Palaus and Yap-Ulithi again.

Rear-Admiral Ralph Davison’s carrier-launched aircraft struck Chichi Jima and Iwo Jima from August 31 to September 2. The Fast Carrier Task Force continued with strikes on Yap and the Palaus from September 6 to 8, and on Mindanao from September 9 to 10. Enemy air resistance was surprisingly weak throughout these operations, prompting Halsey to redirect plans for a follow-up attack on Mindanao to the Central Philippines. While the Japanese forces in the Philippines hastened to complete preparations against anticipated Allied invasion, enemy carrier-borne aircraft served sudden warning on September 9 that the date of this invasion was fast drawing near. In the first large-scale air operation by the Allies against the Philippines, an estimated 400 carrier planes staged a devastating ten-hour offensive against southern Mindanao, concentrating their attacks on Davao, Sarangani, Cagayan and Digos. Since Japanese air patrols had failed to discover the enemy task force, the attacks achieved complete surprise and inflicted widespread and severe damage to ground installations, airfields, anchorages, and lines of communication. Reconnaissance units of the 1st Air Fleet immediately flew off search missions, which revealed that the attacks originated from three enemy naval task groups boldly maneuvering in the waters southeast of Mindanao. As per the Sho-Go directives, however, the 1st Air Fleet withheld retaliatory action pending further developments. Ground and naval units in the Davao area were nevertheless ordered on the alert to meet the possible contingency that an invasion attempt would follow the air strikes, and the Japanese armed forces throughout southern Mindanao became tense with expectancy. A feeling of nervousness gripped the weak local forces at Davao and rapidly spread to the large Japanese civilian colony. A wave of wild rumors swept the city. On September 10, a second series of heavy enemy raids aggravated this state of alarm. The city and harbor were reduced to a shambles and communications paralyzed. Panic and civil disorder broke out. 

Less than 48 hours after the termination of the raids on Mindanao, the enemy struck again; this time in the central Philippines. On the morning of 12 September, a navy radar picket station on Suluan Island, in Leyte Gulf, broadcast over the general air-warning net that a vast formation of enemy carrier planes was heading westward toward the Visayas. Since the Suluan Island lookout was only about twenty minutes' flying time from Cebu, the air forces there could not be alerted quickly enough to put up an effective defense. By 0920 the enemy planes were already swarming over the Cebu airfields, where the main fighter strength of the First Air Fleet was based following its transfer from Davao. Although the attacks extended over the entire Visayan area and later took in Tawitawi, in the Sulu Archipelago, the Cebu fields appeared to be the principal objective. In the three days over which this air offensive continued, the First Air Fleet suffered damage to 50 Zero fighters on Cebu alone, while in other areas 30 additional aircraft of all types were rendered non-operational. Flight personnel suffered numerous casualties, and training was disrupted. Heavy damage was also sustained by Army air units. The 13th Air Brigade, made up of Type I fighters, was so hard hit that it had to be ordered back to Japan for regrouping, while the 45th Fighter­bomber Regiment was reduced to half strength. In addition, 11 transports totalling 27,000 gross tons and 13 naval combat vessels were sent to the bottom of Cebu harbor.The unexpected weakness in enemy air defenses led Nimitz to reconsider bypassing Yap and Mindanao, instead focusing forces on an early invasion of Leyte. McCain’s group continued with attacks on Zamboanga, the Talauds, and Menado en route to Morotai. Meanwhile, between September 1 and 14, Kenney’s aircraft conducted heavy raids on Japanese air bases within range of Morotai, effectively isolating the island. Targeted locations included Halmahera, the northern Celebes, Ceram, western New Guinea, and Mindanao.

After rehearsals and preparations were completed, Barbey’s convoy departed Aitape on September 9. Two days later, they rendezvoused at Maffin Bay with the majority of General Persons’ 31st Division. The entire convoy departed the area on September 12, joined the next day by the covering force and escort carriers. The voyage proceeded smoothly, and Barbey successfully reached Morotai on the morning of September 15. Meanwhile, McCain’s carrier aircraft conducted a bombing and strafing mission over Japanese air bases in the Manado area, destroying 28 enemy aircraft. Kenney’s bombers also struck Japanese air installations on Batjan Island, while Berkey’s cruisers and destroyers shelled enemy positions along Galela Bay. Barbey’s surface warships conducted a bombardment of the landing area.

During the naval and air bombardment, assault ships moved into their assigned positions west of the landing beaches efficiently and without confusion. The initial waves formed quickly and landed the 155th and 167th Regiments on Red Beach at 08:30, followed by the 124th Regiment on White Beach one minute later. Encountering no opposition, the troops swiftly reorganized on shore and advanced toward their objectives inland. By 13:00, the 167th Regiment had secured Pitoe Drome, and by 15:00, Colonel Starr’s 1st Battalion had secured Gila Peninsula. Other units also advanced inland, establishing the 2000-yard beachhead line. Although there were some minor skirmishes, the Japanese could not mount significant resistance against the overwhelming Allied force and retreated into Morotai's rugged interior. The day's action resulted in seven wounded among the 124th Regiment and the loss of twelve Japanese soldiers, with one captured.

Beach conditions, however, proved unexpectedly poor, severely hindering the unloading efforts. Consequently, starting on September 16, all the LSTs, along with numerous LCTs and LCMs, had to be unloaded at Blue Beach, a favorable landing spot on Pitoe Bay's shores. Simultaneously, as the reserve 126th Regiment was disembarking, Persons resumed advancing inland against minimal opposition. Swiftly, they secured a perimeter around the Pitoe Drome area, spanning over 7000 yards wide and approximately 5000 yards deep. Following this, American patrols were dispatched to eliminate small Japanese groups, radar stations and observation posts were established on various offshore islands and Morotai's coastline, and efforts were made to expand the perimeter to the Sabatai River to accommodate additional bivouacs and supply installations. 

Leaving Morotai behind, attention shifts to Burma to explore the aftermath of Operation U-Go. Following the decisive victories at Imphal-Kohima, General Slim opted to pursue retreating Japanese forces toward the Chindwin River, despite the need for rest among his weary British-Indian divisions. Consequently, the 23rd Division spearheaded the pursuit to Tamu, at the head of the Kabaw Valley, where Major-General Charles Fowkes' 11th East African Division took over in early August. Meanwhile, to the south, General Evans' 5th Division pressed toward Tiddim, encountering stubborn resistance from General Tanaka's 33rd Division. Slim's strategy aimed for both divisions to eliminate remaining Japanese forces west of the Chindwin and converge at Kalemyo. Subsequently, the Tiddim road would be abandoned as a supply route in favor of the Kabaw Valley and aerial resupply drops.

As a result, the 31st Division, now led by Lieutenant-General Kawata Tsuchitaro, successfully reached Sittaung. Their mission was to cover the withdrawal of other units in the region. Meanwhile, the 33rd Division faced challenges as it conducted delaying actions along the Tiddim road, with the added threat of East African forces potentially cutting off their withdrawal route towards Yazagyo. Japanese delaying tactics were always the same, and the means of dealing with them was also always the same. A crater would be found beyond which the lead infantry would come under fire and would have to be filled or covered using a Valentine bridgelayer, while air strikes would break up the blocking position to allow tanks from 3rd Carabiniers forward to support them.

To disrupt Tanaka’s communications south of the road, an ad hoc light unit, the Lushai Brigade, was deployed. By mid-August, General Mutaguchi ordered his forces to commence withdrawal towards the Zibyu Range. The 15th and 31st Divisions were directed to cross the Chindwin River by August 25, despite shortages of small boats. At the beginning of the crossing operation, a serious setback was experienced. It had been planned to bring small boats upstream to the crossing area with supplies for the Army and to utilize the same boats to evacuate casualties and heavy weapons south to Kalewa. Because of the enemy air activity over the Chindwin River, it was impossible to bring the boats to the crossing points. As a result, approximately 3000 sick and wounded were forced to cross the river and continue to the rear on foot with increasingly heavy death losses.

By August 31, they were expected to reach the eastern bank of the Chindwin, with the 15th Division consolidating along the Pinbon-Pinlebu line by the end of September and the 31st Division reaching Shwebo by mid-October. By the end of August, key command changes occurred following the setbacks of Operation U-Go. Lieutenant-General Katamura Shihachi replaced General Mutaguchi as commander of the 15th Army, while Lieutenant-General Kimura Heitaro took over from General Kawabe as commander of the Burma Area Army. Kimura Heitaro, noted for his strategic flexibility and acumen, subsequently directed the 33rd Army to secure a defensive line from Lashio to Mandalay, safeguarding the right flank of the 15th Army. The 15th Army, in turn, was tasked with holding the Irrawaddy River from Mandalay to Pakkoku, while the 28th Army was assigned to defend the Yenangyaung oilfields, the Arakan coast, and the Rangoon delta.

Meanwhile, on September 12, the 33rd Division crossed the Manipur River and proceeded with their retreat towards the Kabaw valley. They left the 215th Regiment to guard the rear at Tonzang, while units of the 5th Division infiltrated the area between Tonzang and Kalemyo to disrupt Tanaka's withdrawal and mount significant attacks against the 215th. By September 20, the Japanese forces were forced back to Tiddim, where the 214th Regiment covered the retreat of the rest of the division. Simultaneously, the 26th King’s African Rifles moved east from Tamu to Sittang, crossing the Chindwin River on September 8 to assess enemy strength across the river and prepare bridgeheads for a broader crossing. Encountering unexpectedly strong resistance, they were compelled to retreat back across the river. Under persistent pressure, the Japanese evacuated Tiddim on the night of October 6. Tanaka consolidated his division in the Kalemyo-Kalewa area by the end of October, while pursuing forces captured Fort White and Kennedy Peak. On October 10, the 4th King’s African Rifles launched an assault on Leik Ridge, suffering significant casualties but ultimately securing the main hill twelve days later. Meanwhile, after withdrawing from Mogaung, the 53rd Division regrouped at Mawhun by September 10, where they successfully defended against enemy units until the end of the month. They then retreated towards Pinwe and came under the command of the 15th Army on October 5.

Following the Quebec conference in September, a strategic overview of Burma emerged: the Combined Chiefs of Staff approved two plans. The first, codenamed Dracula, proposed an amphibious assault on Rangoon with a target date of March 15, 1945. The second plan, Capital, aimed at the conquest of north and central Burma, with General Slim suggesting an overland capture of Rangoon as part of the operation. Initially skeptical, the Americans reluctantly agreed to Dracula, contingent on ensuring that northern Burma received adequate resources. However, due to Allied setbacks at Arnhem and during the Battle of the Bulge, it became clear that reinforcements from the European theater could not be spared for the Rangoon offensive. Consequently, it was announced that the operation would need to be postponed until after the 1945 monsoon season.

I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me.

After intense Allied operations in the Pacific, including the capture of the Marianas and Sansapor, attention turned to the Palaus and Halmahera. Japanese defenses were formidable, with significant troop concentrations and elaborate fortifications. Despite setbacks, Allied forces meticulously planned and executed operations, paving the way for further strategic advances in the region.

Last time we spoke about the battle of the Driniumor River. In July and August, American and Japanese forces clashed near Afua in New Guinea. Troop A of the 112th Cavalry engaged Japanese units, pushing them back temporarily. Troop C replaced Troop A but was soon isolated by Japanese attacks. The American TED Force, including the 124th and 169th Infantry, launched a counteroffensive, facing heavy resistance. Despite supply and terrain challenges, TED Force advanced, forcing the Japanese to gradually withdraw. By early August, the Japanese launched fierce and desperate attacks, but American defenses held firm. TED Force continued its advance, encountering further fierce Japanese resistance but successfully disrupting their supply lines. The Japanese, suffering heavy losses, were finally forced to begin a general retreat, as the American forces consolidated their positions by early August. It seemed Green Hell was still living up to its dreadful nickname.

This episode is Operation Dan

Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more  so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945. 

This week we are picking up with the action along the CBI theater. In Yunnan, by the end of July, General Wei's Y Force was still engaged in efforts to eliminate the resilient but small Japanese garrisons at Tengchong, Mount Song, Pingda, and Longling. Simultaneously, the 33rd Army was striving to accelerate preparations for Operation Dan, anticipating resistance from General Honda's main garrisons until September's end. Following the fall of Myitkyina in August, Honda recognized the need to expedite his offensive plans, despite delays in the deployment of the 2nd and 18th Divisions. Additional reinforcements from the 49th Division were expected in Mandalay by September, bolstering Honda's position. Meanwhile, General Matsuyama faced the challenge of isolated garrisons cut off from his 56th Division, surrounded by superior enemy forces. With his main forces focused on imminent offensive preparations, Matsuyama could only provide moral support through radio messages. Colonel Matsui's recent successes reduced Chinese activity on the Mangshi front, allowing for the rehabilitation of the 113th Regiment by August, despite occasional small-scale raids. At Tengchong, Colonel Kurashige resolved to defend the Walled City to the last man against relentless infantry assaults, air bombardments, and continuous enemy artillery preparations.

Compared with the defenses of Lameng, the positions at Tengchong were much less effective due to the factors of disadvantageous terrain and the lack of time to make defense preparations. Tengchong Castle covered an area slightly over a half-mile square; and was surrounded by a rampart 16 to 20 feet in height and over six feet thick at the top. Although the rampart had a stone facing and was backed with clay, it was not proof against an artillery bombardment and considerable work was required to strengthen it. Concrete or stone pillboxes were constructed adjacent to all gates and at the four corners. Shelters were built to protect guns and machine guns mounted on the rampart as well as for the troops and supplies inside the wall. Other entrenchments were prepared within the castle itself. While these measures greatly strengthened the defenses, the castle was still not proof against an intensive air or artillery bombardment. Recognizing the southeast as the primary avenue of approach, General Huo directed his forces to concentrate their main efforts in that direction.

On August 2, following another bombing raid by twelve B-25s that created a gap fifteen feet wide, the 36th and 116th Divisions initiated a new general assault. The Japanese quickly worked to repair the breach and fired machine guns to cover it. It was only after concentrating guns, rockets, and flamethrowers on the southwest pillbox, along with five waves of fighter cover fire, that the Chinese were able to position scaling ladders against the wall. Two companies then seized the top of the wall just east of the southern corner on August 3. Overnight, Kurashige led a successful counterattack that restored defenses along the rampart, except for one platoon that held its ground all night. This platoon's resilience allowed Chinese reinforcements to pass through the breach on August 4 and seize a pillbox inside the city. With the walls breached, the fall of Tengchong became inevitable, but the determined defenders continued to resist fiercely in the coming days, inflicting heavy casualties on the Chinese attackers. Meanwhile, Major Kanemitsu’s Lameng Garrison defended Moung Song fiercely. After the Hondo Position fell, the 308th Regiment resumed the advance on 3 August it had flamethrowers which it used with devastating effect to take the crest of Kung Lung-po. There the Chinese found several Japanese tankettes, which had been dug in for use as pillboxes. Despite repelling enemy attacks with great effort, the Japanese faced dangerously low ammunition supplies. As a result, Kanemitsu decided to raid the 8th Army's artillery positions and supply dumps to replenish his ammunition stocks. Twenty-nine men, selected from the artillery battalion, were divided into two teams for the purpose. One team was to raid the artillery positions on Shirakabe and Haraguchi Hills as well as to attack motor vehicles on the road between Lameng and Huitung Bridge. The second team was to operate in the area to the south and west of the Gake and Hondo Positions.

On the night of August 9, seven groups of Japanese volunteers launched a surprise attack, destroying several howitzers and seizing light weapons and ammunition. Despite Kanemitsu’s initial success and his troops' resilient defense against Chinese infantry assaults, General Song opted to revert to conventional siege tactics starting August 11. His divisions began digging tunnels beneath key Japanese strongholds in the Mount Song triangle, each tunnel stretching 22 feet to accommodate two powerful mines aimed at enemy pillboxes.One mine held 2,500 pounds of TNT, the other mine held 3,500 pounds of TNT.  The mines detonated on August 20, causing significant damage that engineers exploited swiftly with flamethrowers, capturing Kanemitsu’s primary stronghold. In one pillbox forty-two Japanese were buried alive, of whom five were rescued. The prisoners stated that they had been asleep and had never suspected that they were being undermined. At 0920 the 3d Regiment against light opposition took the few strongpoints that remained on Sung Shan proper. In spite of particularly heavy pressure being exerted against the Sekiyama Position, the enemy had made little progress. However, on 19 August, following a heavy bombardment three tremendous blasts shook the Sekiyama Position. The Chinese, becoming discouraged with trying to storm the position, had tunneled under it, the defenders of the Sekiyama Position were virtually annihilated and the position fell to the enemy. On 23 August the Lameng Garrison regrouped to make final resist- ance in the Otobeyama, Nishiyama, Matsuyama, Yokomata and Urayama Po- sitions. The total number available for defense had been reduced to about 150 men, all of whom were wounded, some seriously. Even those who had lost an arm or a leg were propped up in positions where they could fire a rifle or sight a gun. The Lameng Garrison continued to resist in scattered pockets, launching futile counterattacks, Song recognized the battle's turning point. 

During the latter part of July and early August, the Yunnan Force made new troop dispositions and moved in three divisions to attack the town. The main force of the Chinese 87th Division was on the east front, with an element along the Tien-Mien Road; the New 28th Division was between the two elements of the 87th; elements of the 1st Honor Division were on the north front with the New 39th Division on the south and west of Longling. At dawn on 14 August, preceded by an intense concentration of artillery fire and air bombardment, the Chinese forces launched a coordinated attack from all sides. Hill 6 bore the brunt of the enemy attack for eight hours but managed to hold, as did the defenders on the main line of resistance. After the attack had ceased, the Garrison spent the entire night rebuilding defenses, using rubble and half-burned mate- rial from the town. However, five days later, Chinese forces captured the eastern hills, weakening the entire Japanese defensive line. Consequently, by August 23, the eastern front collapsed, compelling the Japanese to retreat from their main defensive positions to reserve positions within the town.

Matsuyama was aware that under the current conditions, Longling would likely fall before September began. While the timely reinforcement of the 3rd Battalion, 148th Regiment would enable the garrison to hold out for a few more days, he understood the urgency of accelerating the Dan offensive to relieve Longling. Starting on 26 August, the 2nd Division began moving from Namhkam to Mangshih under cover of darkness, requiring three nights to complete the movement. Shortly thereafter, the headquarters of the 16th Regiment was called from Bhamo to Mangshih and Col. Hara Yoshimi, commanding officer of the 2nd Reconnaissance Regiment, succeeded Col. Sakai as commander of the Bhamo Garrison, which was placed under 18th Division control. On 30 August, the Division conducted a war game followed by a conference to brief subordinate commanders on the plans and missions of the Dan Operation.

With the recent arrival of the 4th and 146th Regiments, Matsuyama planned to send Matsui’s Task Force and the 146th Regiment northwestward to clear the western sector. Meanwhile, General Okazaki’s 2nd Division would attack northeastward to defeat the main enemy force in the eastern sector, thus fully relieving Longling. Subsequently, the 56th Division would advance towards Tengchong, while the 2nd Division moved towards Lameng, to relieve both isolated garrisons. However, before this offensive could begin, new developments emerged from Tengchong. Realizing that assaults on the ramparts were too costly, Huo ordered his Chinese troops to start tunneling under the walls. Additionally, air attacks increased in intensity, and on August 13, several large bombs struck the headquarters, killing Kurashige and leaving the garrison nearly leaderless. The following morning, after a heavy artillery bombardment of about 20,000 rounds, Huo launched his second general attack.

Despite the garrison's determined defense against Chinese attempts to breach or scale the ramparts, Huo reinforced his southern assault with the 198th Division, applying intense pressure. While defenders held against the combined attacks of more than two divisions, the 198th Division, which had made several ineffectual attacks in the northwestern sectors, was brought south to reinforce the units already there. Three divisions pitted against the badly damaged southern wall could not be held off and Chinese troops began infiltrating beyond the rampart. The garrison launched successive counterattacks and, while they were successful in driving the enemy out on the first two occasions, the third counterattack so exhausted the defenders that the enemy held the southwest corner of the compound. The Chinese were not, however, able to make any appreciable headway in breaching any other part of the castle's defenses.

Three days later, following another heavy air and artillery bombardment that succeeded in making seven breaches in the southern rampart, the Chinese resumed the offensive and managed to force the garrison to relinquish all but the southeast corner of the southern part of the castle compound. On August 22, a fourth attack was then launched; and, in spite of valiant efforts by the defenders, the west gate of the castle was finally taken by the 198th Division early in the morning of August 24. The following day, about 500 grenades and medical supplies were dropped by 12 Japanese fighters, which bolstered the garrison’s morale even though their fate was pretty much sealed already.

Simultaneously, Matsuyama initiated Operation Dan on August 26, with Matsui’s Task Force struggling for six days to secure control of Komatsu Hill before advancing towards Shuangpo on September 1. The Dan Offensive opened inauspiciously with an unsuccessful attack on Komatsu Hill, about three miles south of Lungling. Launched by the 1st Battalion, of the 113th Infantry (Takeda Battalion), on the morning of the 26th, the attack was thrown back and it was not until the following morning after the 3d Battalion, of the 113th (Murakami Battalion) had been thrown into the attack that the Takeda Battalion succeeded in seizing the western half of the hill. Upon achieving the objective, the Murakami Battalion was withdrawn and the Takeda Battalion was exposed to severe counterattacks which the enemy repeated for four days. The Takeda Battalion sustained extremely heavy losses, including the loss of three company commanders. The Inose Battalion attacked the hill from the northeast on 30 August and succeeded in making contact with the Takeda Battalion the following day but the northern part of the hill still remained in the possession of the enemy. Unable to hold up the advance any longer, the Inose Battalion was left at Komatsu Hill to clean out the remnants of the enemy and the main body of the Matsui Column advanced to Shuangpo on 1 September, fighting their way through enemy resistance.

The 146th Regiment successfully bypassed Chinese forces blocking the Tien-Mien Road, reaching the ridge west of Shuangpo. The 113th and 146th Regiments continued their northwestward advance, reaching the Longling River line by September 6, where they nearly wiped out the New 39th Division. Meanwhile, Okazaki assembled his 4th, 16th, and 29th Regiments at Shuangpo, preparing for an offensive. To the south, the 76th Division persisted in defending Komatsu Hill despite heavy casualties. Okazaki directed the 4th Regiment to attack the enemy’s northern positions on September 3, resulting in repeated assaults over the next three days. Despite suffering significant losses, the Japanese were compelled to halt their local offensive.

In the meantime, the 16th and 29th Regiments moved northeastward. The 29th Regiment successfully breached enemy positions and linked up with the besieged garrison by September 6. Despite this victory at Longling, subsequent events at Mount Song and Tengchong rendered Operation Dan futile. On August 29, following the fall of the Otobeyama Position, Kanemitsu realized that resistance could only last a few more days. On September 5 Major Kanemitsu sent to the commander of the 56th Division a final radio message: “All of my brave officers and men have determinedly defended our position for 120 days since May 10 with a sublime spirit of self-sacrifice and an attitude of absolute obedience. However, our ammunition has been entirely expended and practically every officer and man is wounded. The final moment has come. We will burn the colors and code books and make a suicide stand with what strength remains. I do not have the words to apologize for the fact that, because of my unresourceful command, we have been unable to hold out as long as expected. We are deeply moved by your long and special consideration of our situation. I respectfully ask that everything possible be done for the bereaved families of the officers and men of the Lameng Garrison. Our souls will continue to pray for the eternal prosperity of the Imperial Throne and the final victory of the Japanese Forces.”

Consequently, on September 5, he concentrated his remaining forces in the northernmost positions, which came under heavy enemy fire the next day. After Kanemitsu's death from a mortar shell, the Japanese burned their colors and euthanized their wounded. They launched a final suicide charge on September 7, resulting in the death of the remaining 50 survivors. Of the 1260 Japanese at Lameng Garrison, only 9 were captured and 10 believed to have escaped, with the rest perishing at the hands of Song's divisions, totaling approximately 41,675 troops. The significance of Mount Song lies in the four-month siege to clear the block from the Burma Road, during which the Chinese suffered 7675 casualties, including around 5000 from the 8th Army, leaving it with only two understrength regiments fit for further combat at Longling. Meanwhile, on August 31, Huo's fifth attack pressed with great enthusiasm, eventually succeeding in taking the southeast corner, which had withstood the onslaught of two divisions for over a month. The garrison was then pressed back to a line running from the east gate through the center of the palace grounds to the northwest corner of the castle grounds. The number of survivors had been reduced to approximately 350, virtually all of whom were wounded. Five days later, the Chinese attacked once again, successfully effecting a breakthrough of the defensive line which split the defending force into two groups. By September 9, the northwest corner had been completely overrun and only 70 men remained to hold the northeast corner. Realizing that the end was near, the Japanese burned their colors and on September 14 launched a last suicide charge in which the remainder of the garrison was finally cut down.

In a valiant defense, rivaling that of the Lameng Garrison, the 2025 men of the Tengchong Garrison held off the Chinese 20th Army, numbering an estimated 50,000 troops, for approximately 80 days. Despite this, the capture of Tengchong marked a significant victory for Y Force, as it opened a viable route to Myitkyina known as the "Tengchong cut-off". Moreover, the fall of Tengchong and Lameng allowed the Chinese to deploy more troops to counter the Dan offensive. In the early hours of September 7, the 113th and 146th Regiments crossed the Longling River and launched an assault on the 1st Honor Division, entrenched in strong defensive positions. Although General Matsui’s battalions were repelled by determined defenders, the 146th Regiment made notable progress on the left, gradually pushing the Chinese forces northward. By September 9, the western and northern sectors had been partially cleared, and the Longling Garrison was nearly completely relieved. Simultaneously, the 29th Regiment, supported by remnants of the 16th Regiment and the 2nd Field Artillery Regiment, advanced northeast towards the eastern hills, encountering difficulty in capturing them. By September 9, they had only secured one of the hills. With Honda growing impatient due to the slow progress of the 2nd Division. Okazaki directed increased attacks in the following days. An attack was launched on 11 September but did not succeed. Then an attack conducted on the 12th, y the 3d Battalion, 29th Infantry was successful in seizing the hill, however a counterattack by the enemy resulted in the annihilation of the Battalion and the retaking of the hill by the Chinese.

Furthermore, Okazaki also noted that the Chinese were still holding their ground to the south. Consequently, orders were issued for the 1st Battalion, 16th Regiment to address this lingering threat. However, the battalion exhibited such limited initiative that Colonel Tsuji Masanobu of the 33rd Army staff assumed direct command of the frontline units. With the addition of another battalion, this proactive commander led his troops in a series of vigorous assaults, culminating in the capture of the southern hill by September 15. Meanwhile, to the north, Matsuyama successfully relieved Longling, yet a new challenge emerged. The formidable 200th Division had arrived from Kunming and launched immediate attacks against the 113th and 146th Regiments by September 9. Fortunately, Matsuyama received reinforcements in the form of the 3rd Battalion, 148th Regiment and the reserve 168th Regiment, effectively clearing the northern sector by September 11. Positioned defensively, Matsuyama’s forces continued to fend off repeated counterattacks from the aggressive 200th Division, while the 168th Regiment moved westward to confront a significant element of the 36th Division advancing south from Tengchong. At this juncture, the Japanese had suffered approximately 1800 killed and 2500 wounded, while Honda estimated inflicting over 63,000 casualties since May. Despite the costly relief of Longling by mid-September, the 33rd Army had failed to reach the Nu Chiang River or rescue the Lameng or Tengchong Garrisons. Moreover, with Tengchong's fall, the entire 20th Army Group was mobilizing to reinforce Chinese forces engaged in the Longling campaign.

Realizing that Operation Dan faced inevitable failure, Honda opted to halt the offensive. Instead, he directed the 2nd Division to undertake a defensive stance south of Longling. Simultaneously, the 56th Division and the 168th Regiment disengaged from the enemy, moving southwards to relieve the Pingda Garrison. On September 16, the divisions rotated smoothly: the 56th Division gathered east of Mangshi, while Colonel Yoshida Shiro’s 168th Regiment initiated a covering attack to the east. This left the Longling Garrison vulnerable, prompting its commander to defy Honda’s orders and withdraw during the night. Lt. Col. Komuro's action came as a shock to Army and Division headquarters and, although he later committed suicide to atone for his act, the commander and the Garrison were considered to have disgraced themselves and the Japanese Army. Lt. Col. Nagai, a staff officer of the 56th Division, when questioned in 1959 made the following statement: "The Longling Garrison had twice before made great and courageous stands against tremendous odds. They were all exhausted by their efforts and had expected to be relieved. It is understandable that the Garrison should bitterly resent being placed in a position where they might possibly be surrounded in Longling a third time. The defense line of the 2nd Division was so drawn as to leave Longling projecting and constituting a primary target for enemy attacks. It should also be borne in mind that the Garrison was not an organic unit but was, instead, a composite group composed of various elements without the esprit de corps of a regular unit. Although Lt. Col. Komuro was a respected officer, his tendency toward a philosophical approach to life may have made it impossible for him to hold out against the unanimous discontent and resentment of his subordinates."

Fortunately, Matsui’s 3rd Battalion arrived in Longling two days later without encountering Chinese forces. Despite being outnumbered, the 2nd Division managed to maintain its extended front by destabilizing the enemy and conducting nightly raids. On September 17, Matsui launched a successful relief operation, driving the 9th Division from the Sahngzhai area. Concurrently, the 146th Regiment embarked on a forced march towards Pingda; by September 22, it breached the enemy lines, reaching the besieged city. Having been isolated for nearly six months, there were scenes of wild rejoicing as the besieged Garrison welcomed the Imaoka Column. Carrying about 150 casualties on stretchers the combined forces of the Imaoka Column and the Pingka Garrison broke through the enemy lines at night and, on the 24th, reached Liangtzuchai where they were covered by the Matsui Column. Both units withdrew to Mangshih and, when the Yoshida Force subsequently pulled back from Isao Hill, the Pingka relief operation was concluded. Following the conclusion of the Pingda relief operation, Honda began preparations for the impending enemy offensive. 

Subsequently, the 56th Division was tasked again with defending Longling and Mangshi, while the 2nd Division relocated to Muse to prepare for a potential counterattack in the Shweli River valley. Meanwhile, the rested and reorganized 18th Division, now under Lieutenant-General Naka Eitaro, successfully concentrated at Namhkam by the end of September. The 33d Army expected that the main force would arrive prior to the end of the month, but the movement was executed very slowly and units were arriving in Namhkan throughout the month of September. Upon arrival of the Division at Namhkan, the units continued the work on fortification construction that had been started by the 2d Division. The main body of the Division moved via rail through Mandalay, while the 55th Infantry Regiment, with one artillery battalion and one engineer company advanced through Katha, Kunchaung and Sikaw on foot. The Division was gradually built up and, by the end of September, had achieved a strength of about 7,000 men. Since the replacements for the most part consisted of men recently discharged from hospitals, the complete recovery of the Division was understandably slow. The 18th Division finally managed to concentrate in Namhkam by 1 the early part of October. On 2 October, when Lt. Gen. Naka, who was replacing Lt. Gen. Tanaka, arrived at Namhkam, he found that the Division still had not fully recovered from the effects of the Hukawng Operation. However, abundant food supplies in the area, combined with excellent climate, enabled the division to make an unexpectedly rapid recovery during the month of October. By early November, the strength of the Division had been built up to about 9,000 men of whom about 3,000 were reinforcements from Japan. Some tanks and two 149-mm howitzers had been supplied and six mountain guns repaired. During this period of rehabilitation the Division engaged in the construction of defense positions on both sides of the Shweli River in the general area of Namhkam.

This period allowed the Japanese ample time to strengthen their defenses, as Y Force had suffered significant casualties. General Wei found it necessary to retrain and reorganize his depleted divisions before resuming the offensive in Yunnan. Because all of his immediate reserves had been drawn into the fight for Longling, and considering that the Chinese Government had ignored his earlier pleas, Wei Lihuang asked General Dorn, chief of staff of the American personnel working with Y-Force, to present his further requests for 20000 trained replacements (Wei had not received one since the offensive began); for two more divisions; for permission to use the 5th Army's tank battalion; and for Baoshan to be developed as a supply base. Dorn, however, was only partially successful in that the National Military Council renewed its promises to send replacements.

Shifting focus from Yunnan, we turn to the new operations of the 20th Bomber Command. Following the unsuccessful Yawata strike on August 20, Saunders continued planning for the return to Anshan, initially set for August 30 but postponed to September 8. On August 29, Major-General Curtis LeMay assumed command of the 20th Bomber Command. Despite the change in leadership, Saunders' plan remained unchanged: to deploy every serviceable B-29 aircraft. Saunders’ plan was to dispatch every B-29 fit to fly; and so, by September 8, 115 bombers had gathered in the forward area and 108 successfully got off the runways. Of these, 95 reached Anshan to find good weather, with 90 of them dropping 206.5 tons of bombs at the Showa works and 3 bombing other installations while another 5 hit the Xinxiang Railroad Yards and 3 others hit various targets of opportunity. Total losses for the mission were four: a crack-up near Dudhkundi on the way up; two forced landings in China, one destroyed on the ground by enemy planes and one partly salvaged; and a plane listed as missing. The crew of this last plane later walked out with the loss of only one man. The Americans in turn claimed 8 kills, 9 probables and 10 damaged.

The following day, a B-29 reconnaissance plane reported significant damage to the steelworks. Out of the sixteen coke oven batteries, three were estimated to be out of commission for a year, and another three for six months. Additional damage to related installations and the byproducts plant further compounded the impact. Overall, command intelligence officers calculated that the two attacks had reduced Showa's coking output by 35.2%, which in turn would decrease total Japanese rolled steel production by 9.3%. In response to the extensive damage, the Japanese launched their first counterattack against the 20th Bomber Command. Shortly after midnight, Japanese bombers came over Xinjin and attacked the American headquarters, storage areas, and the parked B-29s. Aided apparently by ground signals, the intruders made four runs, dropping fragmentation and high explosive bombs to inflict minor damage on one Superfortress and a C-46, and to wound two soldiers.

Meanwhile, LeMay, who had accompanied the mission to Anshan, was encouraged by the promising results. Despite this, he had been tasked with implementing significant changes to the command. He began revising tactics, tightening and expanding formations, and enhancing training for greater bombing precision—effects that would become evident in the following months. Specifically, LeMay intended to substitute for the current 4-plane diamond formation a 12-plane formation similar to one he had used with his heavies in the ETO. He proposed further to follow 8th Air Force practice by subordinating night missions, so far numbering four of the command’s eight strikes, to daylight precision attacks. This would not mean the abandonment of radar bombing, so vital in variable weather. LeMay’s doctrine called for “synchronous bombing” in which both the bombardier and radar operator followed the bomb run in, with visibility determining who would control the plane during the crucial seconds before release. Precision bombing required training more sustained than the sporadic sessions which the command’s crews had undergone, and fortunately new arrangements for nourishing strikes out of China would release B-29s and their crews from much of the Hump transport duty which had handicapped training. On September 5 LeMay had ordered each group to select 6 lead crews (later increased to 8) upon which other crews in a formation would drop. A week later a school was set up at Dudhkundi, occupied since early July by the 444th Group. Ground training and a simulated mission and critique on each of 10 successive days made the 11-day course at “Dudhkundi Tech” both strenuous and valuable. Meanwhile, the other crews of the 4 combat groups had been working with the 12-plane formation and had made some progress when training was interrupted for the ninth mission.

Most of September was spent initiating LeMay’s reforms, leaving time for only one major operation at the end of the month. Consequently, LeMay decided to finish off Anshan with another 100-plane strike. By September 26, he consequently had 117 B-29s forward, with 109 of them successfully getting airborne the following morning. Though take off had been improved since the last mission, bad weather and a cold front would see only 86 bombers reaching Anshan; 73 of them actually bombing the Showa works, all by radar. Subsequent photographic coverage, however, indicated absolutely no new darnage. In addition, two B-29s bombed Dairen, four Xinxiang, and nine bombed various targets of opportunity. Japanese opposition was likewise ineffective, with the Americans suffering no losses. but during the night, enemy bombers managed to sweep into the Chengdu area to drop three strings of bombs and damage five bombers, two of them seriously. The Chinese warning net had tracked the Japanese planes in from Hankow airfields and the 317th Fighter Control Squadron at Chengtu had ample time to alert command personnel. But the one P-47 up could not make contact. The 312th Wing had suffered with other China-based units from lack of supplies, and in the interest of economy of fuel one of its P-47 groups had been exchanged for the 311th Fighter Group, equipped with P-51B’s. Chennault, reluctant to tie down two full groups for the static defense of Chengtu, had disposed part of the wing forward where the planes could take a more active part in the war, and events were to prove that this policy constituted no serious danger to the B-29 fields.

I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me.

By mid-September, intense battles in the CBI theater saw the Japanese forces grappling with diminishing supplies and overwhelming Chinese offensives. Despite heroic defenses at Tengchong and Lameng, Japanese positions fell after heavy casualties and strategic missteps. General Matsuyama's relief efforts at Longling achieved temporary success, yet the broader objectives of Operation Dan were unmet, marking a turning point in the campaign.

Last time we spoke about the fall of Myitkyina. By late July 1944, the Japanese at Myitkyina in northern Burma were facing severe challenges. Despite holding out through a long siege, they were cut off from supplies and suffering heavy casualties. A leadership conflict between Colonel Maruyama and General Minakami further complicated things. Maruyama defended the city intensely, while Minakami aimed to deny Allied access to strategic roads. With depleted forces, including wounded troops trying to escape via the Irrawaddy River, the Japanese defense weakened. Allied forces, reinforced and ready, made significant gains, shrinking Japanese-held areas. On August 1, Minakami agreed to withdraw, and the remaining Japanese began escaping across the river. The Allies launched a final attack, securing Myitkyina on August 3. The 10 week siege resulted in substantial casualties on both sides. This victory allowed the Allies to improve logistical routes and marked a critical point in the Burma campaign.

This episode is the Battle of the Driniumor River

Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more  so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945. 

Last time we were seeing action kick up at the Driniumor River. While the Japanese offensive had initially been successful, General Hall's forces managed to halt the enemy advance and reform their river line by July 15, despite a 1500-yard gap in the center. The Japanese were aware of this weakness in the American lines and exploited it, especially during the night. However, Colonel Starr's 3rd Battalion patrolled this area and occasionally engaged the enemy, killing 135 Japanese on the night of July 14. Despite this, General Cunningham claimed that his South Force had extended its lines nearly 1000 yards beyond its assigned sector without encountering any elements of the 124th Regiment. Consequently, on July 15, Starr concluded that his regiment had not advanced as far south as previously reported and ordered his units to adjust their lines southward and extend their defenses up the Driniumor towards Cunningham's Troop E. The following morning, Starr's 3rd Battalion began moving south to close the gap. As they reached the area by nightfall, Troop E was attacked by two companies of the 1st Battalion, 239th Regiment. While the cavalrymen sought cover, Starr's 3rd Battalion was also attacked by Colonel Nara's 3rd Battalion, which had turned south after its defeat at the Paup villages. This split the American forces in two, with Companies L and M pushing south through increasing opposition to reach South Force lines, while Companies I and K dug in for the night in their current positions. Despite the intense fighting, several Japanese were killed, and the gap was reduced to 500 yards.

In the course of the day's fighting the Coastal Attack Force had lost all its artillery and had suffered heavy casualties. Additional losses were sustained on succeeding days, but Major Hoshino and his men were not completely removed as an irritant until the night of 16-17 July. During that night remnants of the Coastal Attack Force, about thirty-five men strong, attacked North Force and 124th Infantry command post installations at Anamo. At 23:00 the group charged out of the jungle southwest of the Anamo perimeter. Repulsed by machine gun fire, the enemy temporarily disappeared, only to reappear at 03:00 on 17 July moving west against Anamo along the beach. Machine gun fire from the American positions broke up this second attack, but about ten minutes later the Japanese tried again, this time moving on Anamo from the north by wading in from the sea. Once ashore, Major Hoshino's men broke up into small groups, attempting to destroy mechanized equipment, automatic weapons positions, and communications installations. The Coastal Attack Force remnants had apparently scouted well, for they were reported to have moved purposefully toward the most important installations and they easily found their way about in terrain they had vacated only four days previously. Whatever Major Hoshino's plans were, they were not realized. About forty of his men were killed and the rest dispersed.

Behind them, Hall dispatched Colonel Howe’s 1st and 2nd Battalions to clear the remaining enemy units west of the Driniumor River. Over two days of complex and sometimes uncoordinated company actions, the Americans successfully overran Nara’s stragglers in the area. Further south, as Japanese troops were seen crossing the Driniumor at a fording point about 2,500 yards south of Afua, Cunningham sent Troop A south to high ground behind the Driniumor to halt the Japanese movements westwards. There, the 78th and 80th Regiments, under Major-General Miyake Sadahiko, were assembling for a renewed offensive. Adachi’s new plan involved Miyake striking Afua from the south while the 239th Regiment prepared to move against the Kawanaka Shima area. Additionally, the retreating 237th Regiment and the reserve 66th Regiment were ordered south to join future attacks by the 20th Division, though they wouldn’t arrive until July 25. As the Miyake Force maneuvered into position to the right and rear of Cunningham’s 1st Squadron, Starr struggled to close the gap in the center, which was eventually sealed on the morning of July 18. That night, Miyake launched an attack with two battalions on the 1st Squadron's command post and the adjacent perimeter held by Troop A, successfully pushing them 250 yards to the northeast.

Early in the afternoon of 19 July fresh Japanese units began to surround the Troop A position, moving in from the north, northwest, west, and southwest. The 1st Squadron commander called for artillery fire to break up this enemy maneuver. Upon cessation of the fire, Troop A attacked to the south and west for a second time. Driving at least a company of Japanese before it, the troop pushed 600 yards southwest of its original positions astride the Afua-Palauru trail and temporarily disrupted enemy plans to seize the position. About 140 Japanese had been killed during the two days' operation around Troop A. South Force, at the same time, lost 8 men killed and 29 wounded, all from the 1st Squadron, 112th Cavalry. There were strong indications that more attacks might occur in the 1st Squadron area, but Troop A was not destined to take part in any of these actions. It was replaced on the 21st by Troop C.

Following this victory on July 21, Troop C relieved the battered Troop A, Howe’s battalions successfully set up a patrol base on the East Branch of Koronal Creek, and Starr’s 2nd Battalion moved to Palauru to provide additional outer security southwest of the airfield. On July 19, the first elements of General Wing’s 43rd Division began landing at Aitape, with the 2nd Battalion, 169th Regiment subsequently taking over about 1,000 yards of the river line on the right of the 124th Regiment by July 22. Meanwhile, Adachi ordered the still-reorganizing Miyake Force to attack Afua from the north and west while General Nakai’s 79th Regiment crossed the Driniumor and attacked from the south. On the evening of July 21, Miyake launched his attack on Troop C’s position, successfully cutting it off from the rest of South Force. While the cavalrymen resisted heavy Japanese attacks, Miyake’s units also repelled Cunningham’s attempts to relieve the beleaguered troop over the next few days. Not knowing what other plans the Japanese might have in mind, General Cunningham was unwilling to pull any more troops away from the river defenses. Moreover, he now considered the position of his right flank untenable. He therefore withdrew Troop B north of Afua about 1,000 yards and used the unit to form a new defense line which ran westward about 500 yards from Troop A's right flank, anchored on the Driniumor. South Force's right flank was now refused and additional protection had been secured for medical, supply, and command post installations at the dropping ground banana patch. Troop C was left isolated behind Japanese lines, and Afua was again released to the enemy.

It was not until the night of 21-22 July that the Japanese forward units were able to organize for any sort of attack. During that night, elements of the 124th Infantry received considerable mortar, machine gun, and rifle fire from east of the Driniumor. This fire increased the next morning, and about noon the 3d Battalion, 124th Infantry, was attacked from the west by elements of the 237th Infantry. The first Japanese attack was ". . . finally broken up by a bayonet charge . . ." conducted by elements of the 3d Battalion, 124th Infantry, but other attacks followed as troops of the 1st Battalion, 239th Infantry, tried to move across the Driniumor from the east, striking both the 124th Infantry's unit and part of the 2d Battalion, 169th Infantry. Before dark on the 22d, the 3d Battalion, 124th Infantry, counted 155 new Japanese dead in its area. That unit and the 2d Battalion, 169th Infantry, reported their own losses as five killed and twenty-five wounded.

The 1st Battalion, 239th Regiment made further unsuccessful attempts to reopen the river crossing. By July 25, Adachi decided to send the 41st Division south to assist in the southern effort. After the fall of Afua, Hall ordered Howe’s battalions to leave their East Branch base and reinforce Cunningham’s South Force, arriving at the new line by July 23. With these reinforcements, Cunningham decided early in the afternoon to send Troops A and B to attack west toward Troop C while Howe’s 2nd Battalion pushed southeast toward the isolated troop. Despite being uncoordinated, the infantry successfully moved into Troop C's perimeter from the northwest and helped repel a heavy Japanese attack from the southwest, while the cavalry troops reoccupied Afua and established new defensive positions. However, American attempts to break out on July 24 were unsuccessful due to the Japanese defending all tracks, trails, and ridgelines in the heavily jungled ground northeast of the perimeter. On July 25, Howe’s Companies E and B unexpectedly established contact about 500 yards north of the besieged forces against light resistance, allowing the battered Troop C to withdraw. With Troop C relieved, Howe’s units continued to attack south and west towards the Afua-Palauru trail, successfully pushing the Japanese into the Torricelli Mountains.

Many Japanese troops remained positioned in a triangular area bounded by the dropping ground, Afua, and Company G's ridgeline position, where they continued to harass Cunningham’s forces. Rifle fire, intensifying as darkness approached, harassed the rear and right flank of the two battalions, and the Japanese began intermittently to drop light artillery or mortar shells into the banana patch area, where the command posts of South Force, the 112th Cavalry, and the 127th Infantry were now located. Finally, Japanese patrols, coming in from the west, had scouted the banana patch area during the day, action which seemed to presage an enemy attack during the night. To get out of range of the enemy fire and danger of enemy attack, General Cunningham moved the command post installations 500 yards to the north before dark. Additionally, 127th Infantry patrols had found a Japanese map which indicated that the 66th Infantry, 51st Division, was concentrating in the Kwamagnirk area. Indeed, the 66th Infantry, which, with attached units, was at least 1,000 men strong, had crossed the Driniumor on or about 24 July. Bypassing the right flank of South Force, the regiment had moved into the heavily jungled high ground west of the banana patch and dropping ground. In addition, the remnants of the 237th Infantry, probably about 300 men strong, had finally arrived in the Afua area on 25 July and had passed to the control of the Miyake Force. Rear elements of the 20th Division, including additional men from the 26th Field Artillery and engineer units, had also crossed the Driniumor south of Afua. The number of Japanese troops in the South Force area by nightfall on the 26th of July was at least 2,500 and may have been over 3,000.

On July 27, the battalion launched a successful southward attack, but ongoing Japanese movements to the west eventually necessitated an American withdrawal, despite other units under Cunningham managing to repel enemy advances. The following day, Cunningham consolidated his positions to bolster defenses in anticipation of potential large-scale Japanese assaults. However, on July 29, efforts by the 1st Squadron and the 2nd Battalion to attack south and west into the Triangle were thwarted by determined Japanese defenders led by Adachi. As a result, only localized patrol actions were conducted on July 30 and 31, as Cunningham devised plans for another offensive into the Triangle. 

Major combat activity revolved around the withdrawal of Company G, 127th Infantry, from its exposed outpost west of Afua. On the afternoon of the 29th the unit had been driven more than 400 yards east of its original position by Japanese attacks and had established new defenses on high ground about 300 yards west of Afua. On the 30th the company was surrounded and spent all day fighting off a series of small-scale attacks. The next morning it fought its way north to the dropping ground, where it arrived about 1330. Thence, it moved on to the Driniumor and joined the rest of the 2d Battalion, 127th Infantry, which had switched positions with the 3d Battalion. During the period from 13 to 31 July, South Force had suffered almost 1,000 casualties, of which 260 had been incurred by the 112th Cavalry. For the understrength cavalry regiment, this was a casualty rate of over 17 percent. The 2d Battalion, 127th Infantry, had also lost heavily and was in need of rest, reorganization, and re-equipment--needs which had prompted General Cunningham to change the places of the 2d and 3d Battalions, 127th Infantry. South Force casualties were as follows: 106 killed, 386 wounded, 18 missing, and 426 evacuated as a result of disease and sickness. South Force estimated that it had killed over 700 Japanese. By the end of July, with the arrival of most of the 41st Division, Adachi believed he had amassed enough reinforcements near Afua to launch a final offensive.

The 238th Regiment, the 41st Mountain Artillery, and the 8th Independent Engineers were across the river in time by the 30th but the 2nd and 3rd Battalions, 239th Regiment, had missed the crossing point on the Driniumor and were lost. Fortunately for the 18th Army, the South Force withdrawals on July 29 and 30 gave the 20th and 41st Divisions time to complete their organization. New orders were issued for the attack to start on August 1, with the 20th Division on the west and the 41st Division on the east. The strength that the 20th Division could muster for the attack was a little over 2000 men. Most of these troops had been without food for some time. They were suffering from starvation, malaria, and skin diseases, and morale was cracking. They were short of both ammunition and weapons. The 41st Division and its attached units, totaling nearly 1750 men by the morning of August 1, were in equally bad shape. Nevertheless, General Adachi was determined to make one last attack with the nearly 4000 troops now available to him in the Afua area.

Despite sensing minimal Japanese resistance to the north, Hall was eager to mount a robust counteroffensive against the 18th Army. The 2d Battalion, 124th Infantry, which had been patrolling in the Palauru-Chinapelli area, was relieved from that duty by the 1st Battalion, 169th Infantry, and on the 30th joined its regiment at the Driniumor. The 2d Battalion, 169th Infantry, was already at the river. Tactical control of the counteroffensive was vested in Col. Edward M. Starr, commanding officer of the 124th Infantry, whose counterattack organization was to be known as TED Force. The 1st Battalion, 124th Infantry, was commanded by Maj. Ralph D. Burns; the 2d Battalion by Lt. Col. Robert M. Fowler; the 3d Battalion by Lt. Col. George D. Williams; and the 2d Battalion, 169th Infantry, by Maj. William F. Lewis. To avoid confusion, the four battalions were referred to by the last names of their commanders rather than by their number designations. Fowler's battalion, attacking along the coast, was to be supplied by ration trains moving along the coastal trail from Anamo. The rest of TED Force, pushing through trackless, dense jungle, was to be supplied by airdrop. The 149th Field Artillery Battalion, augmented by the Cannon Company, 124th Infantry, was responsible for artillery support, but when necessary the 129th Field Artillery was to add its fire to that of the 149th. All the artillery units were emplaced on the beach west of the Driniumor's mouth. The positions which the 124th Infantry and the 2d Battalion, 169th Infantry, left vacant on the Driniumor were to be occupied by the 2d and 3d Battalions, 128th Infantry. Colonel Starr had succeeded General Stark as commander of North Force on 18 July when the arrival of elements of the 43d Division at Aitape made it necessary for General Stark, the assistant division commander, to move back to BLUE Beach for administrative duties. General Stark apparently also reassumed command of the Western Sector, in place of General Hutchinson, Assistant Division Commander, 31st Division, who had rejoined his division when it, less the 124th Infantry, moved to a new operational area in western New Guinea. When TED Force was organized, North Force as such apparently ceased to exist, and the 128th Infantry took over the defensive functions previously assigned to North Force on the Driniumor. The name TED Force originated from the diminutive for Colonel Starr's first name. There were always so many units from different divisions and regiments operating along the Driniumor that the task force usually found it more convenient to use names rather than numbers for unit designations. The names, usually derived from the commanding officers, served not only to lessen confusion but also did double duty as code names. 

The attack was to be carried out with three battalions abreast along a front of 3,000 yards, and the fourth in reserve and in position to protect the right flank of the advancing force. The four battalions were to move east to the line of Niumen Creek, destroying all enemy found between that stream and the Driniumor within the 3,000-yard-wide zone of responsibility. Upon their arrival on the Niumen the battalions were to reorganize and prepare for further advances either east or south upon orders from General Hall. All three battalions of the 124th Infantry began crossing the Driniumor on schedule at 0800, 31 July, moving into terrain concerning which only incomplete and sometimes inaccurate information was available. The 1st Battalion faced delays from enemy delaying actions but eventually reached the creek by August 1, while the remaining battalions advanced inland, also reaching Niumen successfully. 

The 1st Battalion’s advance company had been held up about 800 yards east of the Driniumor by elements of the 1st Battalion, 239th Infantry, which had been left along the river when the rest of that Japanese regiment had moved south to Afua on 26 July. Burns' men continued to encounter strong opposition from 239th Infantry elements throughout the day and did not break off contact until 1730, when the battalion bivouacked for the night still 800 yards west of Niumen Creek. Company A had become separated during the day and remained some 550 yards northwest of the main body for the night. Both sections of the battalion were out of touch with the rest of TED Force. The 3d Battalion, 124th Infantry (Williams), crossed the Driniumor at a point about 3,000 yards inland and reached the Niumen about 1400, having encountered only scattered rifle fire. Lewis' 2d Battalion, 169th Infantry, which followed Williams' command, made no contact with the enemy and bivouacked for the night about 500 yards west of Williams. All battalions spent the next day, 1 August, consolidating and patrolling along Neumen Creek, and Burns' unit moved up into line with the others.

Meanwhile, Cunningham planned his own offensive aimed at dismantling the Triangle position following a reconnaissance mission along the Afua-Palauru trail. However, preliminary actions were disrupted when two companies launched a surprise attack from the southwest against Troop C's lines at 06:20 on August 1. General Cunningham immediately canceled the planned reconnaissance in force into the triangle area and turned his attention to this new threat. The first Japanese assault units were quickly reinforced, and the enemy moved forward against Troop C in massed waves along a narrow front. A bloody battle ensued as the enemy, apparently determined to commit suicide, continued his mass attacks. South Force called for artillery support, which was quickly forthcoming and which greatly helped Troop C to throw back the enemy assaults. By 0800 the Japanese had withdrawn and the battle area had become strangely quiet. Patrols were sent out from the cavalry perimeter to reconnoiter. These parties counted 180 dead Japanese in front of Troop C's lines, and it was considered probable that the enemy had carried off many more dead and wounded. Troop C, on the other hand, had lost but 5 men killed and 6 wounded. Examination of the enemy dead disclosed that elements of both the 80th and 238th Infantry Regiments had participated in the attacks. Thirty minutes later, Cunningham proceeded with his reconnaissance mission, encountering minimal resistance before returning in the afternoon. Despite capturing documents indicating an impending major assault, Cunningham deployed the 2nd Squadron as a mobile reserve at his command post.

Although the movement of the 2d Squadron had apparently been well advised, the Japanese did not attack the command post area. Instead, at 1900, elements of the 41st Division struck the 1st Battalion, 127th Infantry, at its lines south of the dropping ground. This attack was preceded by fire from a 70-mm. or 75-mm. artillery piece which the Japanese had managed to sneak into the area within 150 yards of Company B, 127th Infantry. Following a few rounds from this weapon, Japanese infantry charged forward in four separate waves, employing perhaps 300 men on a very narrow front. Few of the enemy got near Company B's positions, for the attack was thrown back with artillery, mortar, and machine gun fire, which caused heavy losses among the enemy forces. By 2030, action in the dropping ground area stopped for the night. During the early hours of the next morning, 3 August, the 1st Battalion, 127th Infantry, again heard enemy activity to its front, and about 0730 a small Japanese party struck between Companies A and C. This attack was quickly repulsed, principally by mortar fire from 1st Battalion units. By noon all activity in the 1st Battalion area had ceased, and the Japanese had withdrawn to the southwest. 

Concurrently, Cunningham’s 1st Squadron faced attacks from Nakai’s 20th Division, but their suicidal charges were also turned back by resilient defenders. The 1st Squadron, 112th Cavalry, on the left rear of the 1st Battalion, was attacked by another group of Japanese at 1945. This action was probably meant to have been coordinated with the attack on Company B, but, if this were the enemy's intention, something had gone wrong. Apparently there had also been some mix-up in unit dispositions, for both enemy efforts had entailed the use of elements of the 78th, 80th, and 238th Infantry Regiments. After the day's action was finished, the combined effective strength of the first two units was probably not more than 250 men, and the 2d Battalion, 238th Infantry, was practically wiped out. The desperate attacks during the day had been carried out with a complete disregard for self-preservation, and had probably cost the Japanese 300 men killed and at least twice that number wounded.

TED Force was subsequently directed to advance south along Niumen Creek toward the Torricelli Mountains foothills to disrupt Adachi’s supply lines and flank the 18th Army. Supply challenges and dense jungle terrain initially delayed Starr’s southern movement, with his northern battalions only linking up with the southern ones by day's end. The next morning, Starr launched a southward offensive, immediately encountering fierce resistance from the 1st Battalion, 239th Regiment, which held a stubborn defense throughout the day. In response, Starr ordered his 1st Battalion to bypass the engagement and move southwest, advancing unopposed for up to 1000 yards. August 3rd proved relatively calm for Cunningham, as the 1st Battalion, 169th Regiment arrived to bolster the South Force perimeter. However, vigilance remained high in anticipation of Mano’s impending final assault. 

On 1 August General Adachi learned that American forces were active in the Yakamul area. It was erroneously reported to him that this was an amphibious operation, a maneuver which the 18th Army commander had feared for some time (actually, the report referred to patrolling by the 2d Battalion, 124th Infantry, along the coast from the mouth of Niumen Creek). He therefore ordered the remaining elements of the 237th Infantry to extricate themselves from the operations in the Afua area and hurry back to Yakamul to reinforce service units in that vicinity. Events moved so rapidly that the remnants of the 237th Infantry never got to Yakamul. Instead, the advance of TED Force made it necessary for General Adachi to change his plans and accelerate a general withdrawal. Communications within forward units of the 18th Army had so broken down that it was not until 3 August that General Adachi learned of the TED Force movement across the Driniumor, although the 1st Battalion, 239th Infantry, had been in contact with TED Force since 31 July. When General Adachi did hear of the American movement, he grossly underestimated the strength of TED Force. Thinking that the American operation was being carried out by only 400 troops, General Adachi merely changed the orders of the 237th Infantry and instructed that regiment to hold the 18th Army's crossing point on the upper Niumen Creek. On the same day, 3 August, General Adachi issued detailed plans for the withdrawal of all 18th Army units to the east side of the Driniumor, a withdrawal which was to begin on 4 or 5 August. The 66th Infantry, 51st Division, was to protect the 20th and 41st Division units as they crossed the Driniumor. The continued advance of TED Force on 3 August prompted General Adachi to change his plans and early on the 4th he ordered the 20th Division to start retreating at noon that day and the 41st Division to break contact on the 5th.

The following morning, elements of the 238th and 239th Regiments emerged from the jungle southwest of the 1st Squadron in a final, desperate charge. Violent action continued in front of the 1st Squadron for about two hours, during which time nearly 200 Japanese were killed at the very edge of the squadron perimeter, principally by machine gun and rifle fire. How many more of the enemy were killed by artillery and mortar fire during the period cannot be estimated, but the banzai tactics undoubtedly cost the Japanese more than the 200 dead counted in front of the 1st Squadron which, in the same two hours, lost only 3 men killed and 4 wounded. By 0900 the last enemy attacks had ceased and the remaining Japanese had withdrawn generally to the south. 

Following the enemy withdrawal, Troop E pursued the retreating Japanese southward, encountering sporadic rifle fire as they eliminated remaining stragglers. The terrain encountered on August 4 and subsequent days during the operations of the TED Force east of the Driniumor proved next to impassable. Dense jungle undergrowth covered the ground; the area was thick with heavy rain forest; low but knifelike ridges, separated from each other by deep gullies, were encountered; and swampy spots were plentiful. To add to the difficulties, rain fell during the day--a downpour which turned much of the ground into a quagmire and flooded many dry stream beds. A few new, rough trails, recently cut by the Japanese, were found, but mud made them nearly useless as routes of advance. Low clouds coming in from the Torricelli Mountains to the south prevented ration and ammunition drops and increased communication difficulties. Battalions ran low on drinking water, for weather conditions prevented resupply of water purification tablets and the assault companies had neither time nor equipment to clean water by other means. Radio communication between battalions, from battalions to TED Force headquarters, and from the latter to higher echelons was nearly nonexistent, for the heavy jungle and the damp weather cut down the efficiency of all radio equipment.

It had been hoped that the advance on the 4th would carry TED Force south to the main Japanese supply route, but the trail reached by Burns', Lewis', and Williams' battalions was another route which had not been used by military traffic for some time. Possibly, it was a section of the native trail to Afua and, as such, purposely avoided by the Japanese inasmuch as parts of it could be seen from the air. In any case, the track cut on the 4th lay about 1,200 yards north of the east-west trail which most of the Japanese forces moving to and from the Afua area had been using. Colonel Starr, realizing that the main Japanese supply route had not yet been severed, ordered his units to continue southward on the 5th, on which day the advance was resumed about 0800 hours with Williams leading and Lewis' battalion about 400 yards to the rear. Pushing south along now precipitous and mountainous banks of the upper Niumen, Williams' unit was opposed by only scattered rifle fire until 1100, when it was decisively halted by a strong Japanese force conducting a stubborn defense. On August 5, learning that TED Force was approaching the point at which the 18th Army's main line of communications crossed the upper reaches of Niumen Creek, General Adachi had also ordered the 8th Independent Engineers to aid the remnants of the 237th Infantry in holding the crossing point. It was this combined 237th Infantry-8th Engineers force that Williams' 3d Battalion, 124th Infantry, had encountered about 1100 on 5 August. The composite Japanese unit was dug in along a 1,000-foot high ridge across Williams' line of advance and threatened to outflank the battalion by occupying other high ground nearby. Despite artillery and mortar support, Williams' men were unable to advance. Colonel Starr ordered Lewis' unit to bypass the fight and continue south to locate and cut the Japanese main supply route. Fighting at Williams' front continued through most of the afternoon, and Colonel Starr realized that the Japanese force could not be dislodged that day. Fowlers' battalion was brought up to the rear of Williams' and late in the afternoon set up a new perimeter with the regimental command post. Before dark, Williams' men withdrew slightly from their most forward positions so that artillery concentrations could be placed along the front. Lewis' unit, which had moved off to the southeast to bypass Williams' fight, made little progress in very rough terrain and was cut off from the rest of TED Force before it could swing westward.

Meanwhile, another battalion to the west encountered minimal resistance as it intercepted the main enemy trail east of the Driniumor, linking up with patrols from Cunningham’s 2nd Squadron. Action on the 6th started earlier than TED Force expected. About 0300 approximately 400 Japanese attacked Williams' perimeter. This enemy force comprised elements of the 41st Division, supported by men of the 26th Field Artillery of the 20th Division and some remnants of the 8th Independent Engineers. Attacking under cover of fire from machine guns, mortars, and 75-mm. mountain guns, the Japanese force was attempting to secure fords over the upper reaches of Niumen Creek and protect the withdrawal of other elements of 18th Army units from Afua. Though surprised, Williams' men held back the initial onslaught. Reportedly, Japanese riflemen then climbed trees surrounding Williams' perimeter to pin down the American troops while other Japanese continued to attack on the ground.

Fowler's unit, under orders to bypass Williams' fight and move around the enemy left, started moving about 0800 hours but soon found the terrain made it impossible to avoid contact with the Japanese opposing Williams. The Japanese, having control of most commanding ground in the area, stopped Fowler's leading company. Action was not rapid. The terrain made all movements slow and laborious, and much time had to be taken to co-ordinate artillery support fire properly. Under cover of artillery fire, another company of Fowler's battalion, creeping slowly through ravines and up an almost vertical cliff, worked around to unoccupied high ground on the Japanese left. The rest of the battalion was successfully disengaged to secure more commanding terrain in the same area. The Japanese, finding themselves outflanked and subjected to increasingly heavy artillery and mortar fire, began to withdraw southward in midafternoon, relieving the pressure on Williams' front. Fowler's battalion, in enveloping the Japanese left, had moved north and then westward and the maneuver had carried the unit by dark to a point just north of the main trail about 750 yards east of Burns' battalion. Williams' men withdrew to reorganize, after disengaging from the enemy forces late in the afternoon; at dark, having resumed the march westward, they secured high ground north of the trail. The ground covered during the day by Williams' battalion was little more than 500 yards west of the position it had occupied the previous night. The unit probably could have moved farther, but Colonel Starr halted it so as not to increase the distance from Lewis' battalion which was, in effect, lost. The unit had laboriously struggled over extremely rough and trackless ground during the day, fighting in the afternoon against a number of Japanese who had withdrawn from Williams' front. For the night, Lewis' men set up a perimeter about 800 yards south-southeast of the scene of Williams' fighting. With Adachi’s escape route blocked, Starr’s battalions advanced southwestward, achieving notable success by killing around 500 Japanese soldiers between August 6 and 7.

In the interim, Cunningham’s South Force completed operations in their sector, achieving a successful attack led by Howe that ousted the remaining disorganized Japanese presence from Afua on August 6. Two days later, the 124th Regiment advanced to the Driniumor, claiming to have eliminated approximately 1800 Japanese soldiers since the start of their counteroffensive, at the cost of 50 men killed and 80 wounded. With the rest of Adachi’s 18th Army retreating towards Wewak, General Gill declared Afua secure by the evening of August 9. Following the conclusion of the Battle of the Driniumor River, the fatigued units of the 32nd Division, including the 124th Regiment and 112th Cavalry Regiment, were relieved by units from Wing’s 43rd Division. From August 16 to 25, Wing’s regiments conducted final combat missions in the Aitape region, encountering minimal Japanese resistance east of the Driniumor, except for delaying actions near the mouth of the Dandriwad River by patrols of the 103rd Regiment. Consequently, General Krueger declared the Aitape operation concluded on August 25, confident that the 18th Army posed no further threat to the Tadji airstrips. Adachi’s forces had indeed suffered a decisive and costly defeat, rendering them incapable of posing a significant threat to Allied forces anywhere in New Guinea. The campaign to secure the Aitape area and defeat the 18th Army resulted in approximately 440 Allied soldiers killed, 2550 wounded, and 10 missing, while inflicting losses of around 8821 Japanese killed and 98 captured, including 2669 killed and 34 taken prisoner from August 2 to 9 alone. Adachi himself reported losing 9000 men and virtually annihilating seven regiments.

I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me.

The American forces under Hall and Cunningham repelled multiple fierce Japanese offensives, inflicting heavy casualties. Despite a lot of setbacks and logistical challenges, TED Force advanced southward, disrupting Japanese supply lines and forcing their withdrawal by early August. Casualties were significant on both sides, underscoring the fierce nature of fighting on Green Hell.

Last time we spoke about the fall of Guam and actions in New Guinea. General Shepherd's Marines had secured the Orote Peninsula, while General Turnage's Marines pushed the Japanese northwards. General Bruce's 77th Division prepared for an eastward assault, and engineers attempted, but failed, to build a supply road to Yona. Geiger's offensive began on July 31, with Marines quickly capturing Agaña and advancing despite dense jungle and resistance. The 77th Division faced tough terrain but liberated 2,000 Guamanians. The push north continued, facing logistical challenges and mined roads. By August 7th, coordinated attacks cleared key areas, culminating in the defeat of remaining Japanese forces by August 11. Guam was back in American hands although scattered Japanese forces continued guerrilla warfare until the war's conclusion. Thus the Marianas campaign had finally come to a conclusion, and now the allies were adding more bass of operation to hit the Japanese home islands. 

This episode is the Fall of Myitkyina

Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more  so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945. 

This week we are diving back over to the northern Burma front. Despite holding Myitkyina through a rainy, muddy summer-long siege, by late July, the Japanese had been gradually cornered into a small perimeter, cut off from all supply lines and running short on ammunition. The situation worsened due to a leadership crisis, between the two Japanese leaders was a matter of semantics. Colonel Maruyama of the 114th Regiment who was in charge of the defense of the city, interpreted his orders to “facilitate the future operations of 33rd Army ‘by securing the vital areas in the vicinity of Myitkyina’,” as a call to defend the city street-by-street, house-by-house. When General Minakami of the 56th Division arrived, he pointed out that all Maruyama had to do to satisfy his orders was simply to continue to deny the Allies access to the Ledo-Kamaing road. Minakami thus found himself in a rather difficult position in regard to the command of the Myitkyina Garrison. Maruyama had conducted an excellent defense, was fully familiar with the situation and, because of his position as former commander, exercised considerable authority. Shortly after Minakami’s assumption of command, General Honda asked how long Myitkyina could stand. Minakami replied that the garrison might be able to hold out for as long as two months. A few days later, Honda was surprised to receive a second message stating, "The Myitkyina Garrison finds it difficult to hold with the poor defense facilities and meager supplies of ammunition." The Army staff concluded that the first message was undoubtedly Minakami's personal opinion as it reflected his determined character and that the second message incorporated the views of Maruyama who was more cognizant of the actual situation. In order that there should be no doubt as to the importance of holding Myitkyina, Honda sent the following message, "Maj. Gen. Minakami will defend Myitkyina to the death” — a message sent with deep regret and sadness according to the staff officers who wrote and dispatched the order.

Heavy casualties had reduced the Japanese forces from around 3,000 to fewer than 1,500, further weakening the garrison's defensive capabilities. This number included the heavily wounded and hospital patients, who could only be evacuated by drifting down the Irrawaddy River on rafts, often intercepted by the unforgiving Kachin Levies. On July 24, eight rafts and a boat laden with Japanese were attacked on the Irrawaddy by Kachins of the OSS Detachment 101. Twenty-four Japanese were killed, two captured, and then it was learned these were hospital patients fleeing Myitkyina. Three more Japanese seized by friendly Burmans revealed that hospital patients were being evacuated by the simple expedient of letting them drift down the river on rafts.

As these fierce defenders began to falter, General Wessels felt ready to launch his final push. Reinforced by the 149th and 90th Regiments, the American-Chinese forces made daily gains of several hundred yards during the last days of July, though at a significant cost. As the Japanese-held area shrank, counterattacks became less dynamic, captured positions were less fortified, and many Japanese dead were found to be severely wounded men returned to the line. Unbeknownst to the Americans, the desperate defenders had requested a withdrawal to the east by the end of the month. Though Minakami had intended to fight to the last, he ultimately agreed to preserve his men’s lives. On the night of August 1, the Japanese began their escape, crossing the Irrawaddy east of the town.

Weighing the many evidences that control of the situation was rapidly passing into their hands, Wessels and his colleagues drafted a new plan of attack. It included an ingenious device, credited to General Pan Yu-kun of the 50th Division. A raiding party, formed into fifteen heavily armed sections, was organized and briefed on infiltrating Japanese lines facing the 50th Division. Having made its way through the Japanese lines in darkness, it was to remain hidden until 0430 when the 50th would assault while the raiders spread confusion behind the Japanese lines. Meanwhile, air reconnaissance revealed many rafts moored against the Irrawaddy within the Japanese lines. "At 0300 hours (3 August), when the moon went down and rain and thunder set in, the raiding party of the 50th Division moved out. The approach was detected only once and some shots were fired at the raiders, who hit the ground. The Chinese did not return fire however, and after laying low for a while, moved out again quietly and cautiously."

While the raiders created confusion behind Japanese lines, the 50th Division launched a full attack, quickly overwhelming the remaining enemy positions and capturing 187 prisoners, thus securing Myitkyina for the Chinese. However, about 800 Japanese managed to escape eastward and later rejoined their allies. Minakami was not among them. As the 3rd of August meandered on in a haze of gunfire, blood and rain, Minakami went to sit with his back against a tree. There came the sound of a pistol shot. Japanese officers nearby sprinted to the scene. The general’s orderly was in tears. They found Minakami’s body erect against the tree trunk, facing northeast, towards Japan. The ten-week siege resulted in approximately 3,000 Japanese killed or captured; 972 Chinese killed, 3,184 wounded, and 188 evacuated due to illness; and 272 Americans killed, 955 wounded, and 980 evacuated sick. Overall, the total American-Chinese casualties in 1944 amounted to 13,618 Chinese and 1,327 American casualties. A week later, the Galahad Unit, reduced to only 130 combat-effective men from the original 2,997, was disbanded.

The fall of Myitkyina was General Stilwell’s greatest victory, earning him a promotion to full general on August 1, two days before the city fell. The attack was costly in terms of suffering and losses, but the Mogaung-Myitkyina area was a significant prize. It allowed Ledo Road builders and American transport planes to move to Myitkyina and enabled ground forces to link up with other Chinese forces in neighboring Yunnan. As the fighting moved further south down the Hukawng and Mogaung valleys, it became safer for transports to use the lower, more southerly routes to China. This, in turn, increased Hump deliveries to China from 13,686 tons in May to 18,235 tons in June and 25,454 tons in July. 

While the Allies celebrated victories in northern Burma, the situation in China was dire as the Ichi-Go offensive resulted in many Chinese casualties. By August 1, General Yokoyama had amassed 110,000 troops around Hengyang, equipped with five heavy artillery pieces, fifty mountain artillery pieces, and 40,000 shells. Conversely, General Fang’s resilient defenders had dwindled to 3,000 exhausted troops, with their defenses largely destroyed. General Xue Yue’s reinforcements had failed to reach Hengyang, leaving the Chinese forces to rely on the 46th Army to launch an attack along the railway.

On August 4, Yokoyama initiated his main offensive. The 68th and 116th Divisions launched a significant assault from the south and southwest, while the 58th Division quietly positioned itself near the enemy’s northern defenses. Initially, progress was slow. However, by August 5, Yokoyama’s forces had captured Yoping and School Hill. The next day, the 116th Division secured part of the city's defenses. On August 6, the 58th Division breached the city walls from the north, forcing Fang to redeploy troops to counter this new threat. Intense street fighting broke out on August 7 as the defenders valiantly tried to repel the Japanese attacks. By nightfall, the 68th Division had overrun the southern defenses and entered part of the Walled City. Gradually, enemy troops began to surrender, and before dawn on August 8, after 48 days of fierce resistance, Fang was compelled to surrender.

Following the capture of Hengyang, Yokoyama declared the successful completion of the initial phase of Operation Togo and promptly began preparations for the subsequent offensive. In this phase, the Japanese reported casualties of over 3860 killed, 8327 wounded, and 7099 sick, with an estimated Chinese casualty count exceeding 100,000, including 8400 killed and 5000 captured in Hengyang alone. To spearhead the next stage of Operation Togo targeting Guilin and Liuzhou, General Okamura Yasuji's 6th Area Army was established on August 25, comprising the 11th, 23rd, and 34th Armies, along with the 27th, 40th, 64th, and 68th Divisions, alongside additional support units. This allowed General Hata to focus on countering potential American landings on the Chinese coast while Okamura directed the offensives in eastern China. Ahead of this operation, Lieutenant-General Tanaka Hisakazu of the 23rd Army initiated a preliminary offensive in late June, positioning the 23rd Independent Mixed Brigade in the northeastern sector of the Luichow Peninsula, advancing the 22nd Independent Mixed Brigade to the Tanjiang River, securing the Jiangmen area with the 22nd Division, and capturing the Qingyuan sector with the 104th Division. By late August, Yokoyama had deployed six divisions along the Shuangfeng-Leiyang line, poised to eliminate the enemy in the district west of Hengyang. On August 29, he launched the offensive, with over 100,000 troops advancing southwest amidst heavy artillery bombardment. Intense ground and aerial combat ensued, resulting in the loss of 10 Japanese planes and 15 enemy aircraft. Despite fierce resistance from Chinese defenders over three days, their entire line collapsed on September 1, prompting a retreat towards Shaoyang, Qiyang, and Jiahe.

However, the Japanese advanced relentlessly, covering nearly 100 kilometers in the following days without pause. By September 5, both Qiyang and Huochangpingzhen had fallen, followed by the seizure of Lingling Airdrome on September 8 by the 3rd Division. Progressing along a north-south axis, Japanese forces secured Shaoyang and Changning, while the 58th Division captured Dongan on the same day. With initial objectives achieved, Yokoyama ordered further pursuit, with the 3rd and 54th Divisions converging in the Quanzhou area by September 14. Meanwhile, Tanaka prepared for his offensive, with the bulk of the 104th Division moving towards Taipingzhen, and a raiding unit conducting a wide envelopment maneuver along the Zhukeng-Huaiji road towards Wuzhou by September 6. Subsequently, the 23rd Brigade began its northward march from Suixi. However, Tanaka's offensive wouldn't commence for a couple of weeks.

Turning to the broader context of the Pacific War, General Stilwell celebrated a major victory with the fall of Myitkyina, while General Slim's successful defense against Operation U-Go further bolstered Allied morale in the CBI Theater. In Thailand, Prime Minister Phibun's regime faced a significant crisis as Japan struggled to meet the country's essential import needs, leading to inflation, rationing, shortages, black markets, smuggling, corruption, and profiteering. The anti-Japanese Free Thai underground movement, spearheaded by Regent Pridi Banomyong, infiltrated the government, stoking public discontent against both the Japanese occupiers and Phibun's administration.

As a result, following the downfall of the Tojo government, Phibun found himself compelled to step down in late July. For his part, Phibun also was thinking of ways, he claims, to prepare to turn against the Japanese. Part of these preparations included proposals to move the capital to remote Phetchabun, north of Bangkok, and construct a “Buddhist City,” a sort of center for world Buddhism, near Saraburi—both grandiose projects in typically extravagant Phibun style. Moving to the isolated, mountain-ringed Phetchabun, Phibun later argued, would facilitate a Thai uprising against the Japanese. Yet on July 18, the Tojo government in Japan resigned, and only six days later the Thai National Assembly turned down both government bills and forced the resignation of Phibun as prime minister. The deputies in the assembly voted against these plans motivated in part by the fall of Tojo, who was closely associated in their minds with Phibun, in part by their feeling that the war was turning against Japan, and in part by their feeling that Phibun was too closely identified with an authoritarian past that must now be buried for the sake of improving relations with the Allies. 

Politician Khuang Aphaiwong then assumed his position as Prime Minister on August 1. Serving as a compromise candidate, he navigated between Phibun's supporters and the opposition while maintaining cooperation with the Japanese and safeguarding Free Thai members who had collaborated with the Allies. Meanwhile, in China, the success of Operation Ichi-Go led to another leadership crisis. Despite the initial rejection of Stilwell commanding troops in China in 1942, the effective Japanese offensive posed a threat of defeat to the Chinese Government, reigniting the debate over command authority. This was especially significant as Chinese troops under Stilwell’s command were achieving significant victories in northern Burma. However, Stilwell's vocal criticism of Chiang Kai-Shek’s corrupt regime and incompetent generals strained their relationship. Chiang favored General Chennault, who proposed that with a monthly allocation of 10,000 tons for operations in northern China, his 14th Air Force could halt the Japanese offensive. Despite his strained relationship with Chennault, Stilwell redirected Hump allocations to increase the 14th Air Force's allocation to 8,425 tons, although he couldn't secure an additional 1,500 tons from the Matterhorn allocation. Chennault's aircraft managed to disrupt the Japanese advance, but failed to halt it completely. In late June, Stilwell faced criticism when Vice-President Henry Wallace visited Chongqing. While Wallace persuaded Chiang to allow a small American observer mission into Communist territory, he also recommended Stilwell's recall due to his perceived lack of diplomacy and strained relations with the Chinese leadership.

Nonetheless, Stilwell maintained the backing of the Joint Chiefs of Staff, and President Roosevelt eventually nominated him to lead the China Theater, on the condition that he make every effort to avoid upsetting the Generalissimo. In July, the President attempted to persuade Chiang to accept this arrangement, but the Generalissimo employed various diplomatic maneuvers to reject the proposal, agreeing "in principle" only after an unspecified period for his forces to adjust. He also requested the presence of a presidential representative to facilitate smooth relations between himself and Stilwell. Major-General Patrick Hurley was appointed to this role and arrived in China in August. Concurrently, the Dixie Mission arrived in Yan'an, where over the following months, American observers assessed Communist society, military tactics, and guerrilla operations, issuing reports that commended them and suggested increased collaboration.

Following the fall of Hengyang, tensions escalated in China, with rumors swirling about potential coup plans involving Marshall Li Zhongren and General Xue Yue against the Generalissimo. Meanwhile, Chennault urged Stilwell to divert Hump airlift capacity to supply ground forces in eastern China, a move opposed by Chiang, who feared supporting potential insurgents with lend-lease equipment. Stilwell, anticipating his imminent assumption of leadership in the China Theater, refrained from challenging Chiang's stance. With significant developments looming, the intensifying rift between Stilwell and Chiang foreshadowed the downfall of one of them.

Elsewhere in the South Pacific, General MacArthur’s troops had finished their final offensive in New Guinea and were preparing to return to the Philippines by way of an intermediate stop at Halmahera Island. To the east, Rabaul was completely surrounded, enduring heavy bombardment from Allied air forces. Meanwhile, on Bougainville, the remaining forces of the 17th Army had retreated to the island's southern region, unable to launch further counterattacks. The living conditions of the Japanese soldiers, never good under the best of circumstances, became increasingly desperate. Added to the dangers that forward troops always faced, such as contact with large American combat patrols, was the growing specter of starvation. Sealed off from regular supplies from New Ireland or New Britain, General Hyakutake's army had to depend entirely on its own laborers to acquire food. The normal rice ration of 750 grams of rice for each soldier was cut in April 1944 to 250 grams, and beginning in September there was no rice ration. A large portion of the available army and naval personnel had to be put to work growing food. Allied pilots took delight in dropping napalm on these garden plots whenever possible. The native workers who had been impressed into service were the first to defect, but soon many soldiers also just walked away from their units, taking the chance of surviving in the jungle on what could be gathered. After the failure of the March attack, morale in most units became deplorably low. There were instances, normally unimagined in the Japanese army, of open insubordination and even mutiny. Although General Hyakutake dreamed of a midsummer offensive, it became obvious that no operations as large as that smashed in March could be undertaken for months, if ever. Thus, almost as if by agreement, both sides adopted a defensive posture that minimized the conflict in the no-man's-land between them.

In the Central Pacific, significant progress had been made over the past year, marked by the complete capture of the Gilbert, Marshall, and Mariana Islands, strengthening the Allied presence and providing a launching point for future offensives into the heart of the Japanese Empire. The next target for Admiral Nimitz was the Palaus, to be invaded concurrently with Halmahera. However, the architect of this southwestern advance was not Admiral Spruance, who had been overseeing operations with the 5th Fleet. Instead, it was Admiral Halsey’s 3rd Fleet, known as the "Department of Dirty Tricks," that had been strategizing the next moves from Hawaii. Now, Admiral Halsey was set to assume command of the Pacific Fleet, leading the charge to the Palaus and the Philippines. This rotation in leadership between Halsey’s 3rd Fleet and Spruance’s 5th Fleet was orchestrated by Nimitz to maintain operational tempo and confuse the Japanese. The alternating command structure allowed for continuous planning of future operations while the active fleet conducted current ones.

However, Tokyo was apprehensive about a potential invasion of the Philippines and sought to bolster its defenses. Following the surrender of the US Army Forces in the Philippines, the 14th Army, led by Lieutenant-General Tanaka Shizuichi, worked to establish military administration, secure cooperation from civilian institutions, and quell guerrilla groups across the countryside. Despite their endeavors, their control over certain regions, particularly in the Visayas and Mindanao, remained fragile. Allied submarines and aircraft from Australia and New Guinea also delivered supplies like signal equipment, weapons, explosives, propaganda materials, and counterfeit currency to support the guerrilla forces, further impeding Japanese efforts. Additionally, with the deteriorating situation in the South and Central Pacific, more troops were redirected from the Philippines’ garrison to other areas, weakening the 14th Army, now commanded by Lieutenant-General Kuroda Shigenori since May 19, 1943. Undermanned and stretched thin, the Japanese halted their suppression operations in August, hoping that the imminent declaration of independence by the Second Philippine Republic would lead guerrillas to surrender. However, this strategy backfired, as the guerrillas only grew stronger during the pause. Consequently, Kuroda restarted intensive suppression operations in 1944, but guerrilla activities escalated in anticipation of the imminent liberation by American forces. As a result, the guerrillas gained strength in the following months, providing valuable intelligence to MacArthur’s forces in preparation for their eventual return. Given this context, it was evident that the 14th Army would be ill-equipped to withstand an American invasion under the current circumstances.

Due to its crucial strategic location bridging Japan and the southern region rich in natural resources, Japan couldn't risk losing the Philippines. It served as their primary rear base supporting the main defense perimeter. The Philippines were also to play the role of a rear base of operations–an assembly and staging area for troops and supplies and a concentration area for air reserves, to support operations at any threatened point on the main defense perimeter from the Marianas south to Western New Guinea and the Banda Sea area. To implement these plans, IGHQ in October 1943 directed the 14th Army to complete the establishment of the necessary base facilities by the spring of 1944. Major emphasis in this program was laid upon the construction of air bases. The Army alone planned to build or improve 30 fields in addition to 13 already in operational use or partially completed. The Navy projected 21 fields and seaplane bases to be ready for operational use by the end of 1944, expanding its total number of Philippine bases to 33. Line of communications and other rear­ area base installations were also to be expanded and improved. Of the 30 Army airfields projected in October 1943, six had been generally completed by May 1944, and 24 under construction. Of the 21 projected Navy fields, 15 were still incomplete by then.

Consequently, in early 1944, the decision was made to strengthen the garrison in the Philippines. Initially, this involved reorganizing and expanding existing garrison units to establish four new independent mixed brigades. These brigades were primarily tasked with suppressing guerrilla activity, while infantry divisions were assigned to defend against potential enemy landings. However, despite the estimation that at least seven divisions were necessary for the defense of Luzon, the Visayas, and Mindanao, only the 16th Division was available. Additionally, it was deemed crucial to bolster air strength with at least two air divisions, anticipating Allied invasions in Halmahera and Palau before advancing to the Philippines. Plans were formulated in March to deploy reinforcements within eight months. In mid-May, General Terauchi relocated his headquarters to Manila to oversee operations more closely. Concurrently, efforts were made to transport the 30th Division to Mindanao and bring the 4th Air Army to Manila. Furthermore, the Philippines were reinforced with the 2nd and 4th Air Divisions, the latter being tasked with constructing 30 new airfields.

In June, approximately 20,000 inexperienced replacements were transported to the Philippines to bolster the recently-formed independent mixed brigades, filling them up to division strength. Subsequently, in July, the 100th, 102nd, 103rd, and 105th Divisions were activated, along with the establishment of the 54th and 55th Independent Mixed Brigades. It's ironic that despite this reinforcement, the main Japanese forces were as inexperienced as the Philippine Army during MacArthur’s defense. Nonetheless, Terauchi was resolute in further fortifying the Philippines to prevent its fall, unlike MacArthur's situation. By mid-July, the reinforced 58th Independent Mixed Brigade arrived at Lingayen. Later that month, the 14th Army underwent reorganization into the 14th Area Army, with units directly under its command tasked with defending the northern Philippines. Meanwhile, the 35th Army, led by Lieutenant-General Suzuki Sosaki, was established under the 14th Area Army to defend Mindanao and the Visayas. Additionally, Tokyo finalized plans for decisive battle operations, codenamed Sho-Go, covering the Philippines-Formosa-Ryukyus-Japan-Kuriles area. This determined the disposition of Army and Navy air forces across the Pacific, with the Philippines receiving the reorganized 1st and 2nd Air Fleets and the 4th Air Army. The Philippine garrison was strengthened to a total of nine divisions and four brigades, with the 1st Division at Shanghai and the 68th Independent Brigade at Formosa designated as general reserves. Defenses and fortifications were constructed at Luzon in preparation for the decisive battle there. 

Known as the Combined Fleet Top Secret Operations Order No. 84,  issued on 1 August, this fixed the new tactical grouping of naval forces for the Sho-Go Operations. Almost the entire surface combat strength of the Fleet was included in a Task Force placed under the overall command of the First Mobile Fleet Commander, Vice­Adm. Ozawa Jisaburo. This force was broken down into three tactical groups: (1) the Task Force Main Body, directly commanded by Vice­Adm. Ozawa and consisting of most of the Third Fleet (carrier forces): (2) the First Striking Force, commanded by Vice Adm. Kurita Takeo and made up of the Second Fleet with part of the 10th Destroyer Squadron attached: (3) the Second Striking Force, commanded by Vice Adm. Shima Kiyohide and composed of the Fifth Fleet plus two destroyer divisions and the battleships Fuso and Yamashiro. The First Striking Force would be stationed at Lingga Anchorage, while the Task Force Main Body and the Second Striking Force would be stationed in the western part of the Inland Sea. However, if an enemy attack was expected, the First Striking Force would advance from Lingga Anchorage to Brunei, Coron or Guimaras while the Task Force Main Body and the Second Striking Force remained in the Inland Sea and prepared to attack the north flank of the enemy task force. During August, the Navy Section of Imperial General Headquarters also took action to give the Combined Fleet more unified operational control of naval forces in order to facilitate the execution of the Sho-Go plans. On 9 August the General Escort Command and units assigned to naval stations were placed under operational command of the Combined Fleet, and on 21 August the China Area Fleet was similarly placed under Combined Fleet command. On 10 August the 1st Carrier Division, reorganized around two newly-commissioned regular carriers, was added to the Task Force Main Body. Vice Adm. Ozawa, Task Force Commander, meanwhile set 15 October as the target date for completion of the reorganization and training of the 3d and 4th Carrier Division air groups. Concurrently with these preparations, steps were taken to strengthen the antiaircraft armament of combat units.

Accordingly, the Japanese sought to deploy the 8th and 26th Divisions, the 2nd Tank Division, and the 61st Independent Mixed Brigade to the Luzon region for a decisive battle. However, enemy submarines posed a constant threat. Since February, they had been patrolling the South China Sea, targeting the Hi Convoys supplying Japanese territories in Southeast Asia and Japan itself. During these engagements, Admiral Ijuin was killed aboard the patrol boat Iki. Between August 18 and 25, Admiral Kajioka's Hi-71 convoy, carrying the 26th Division, was attacked by six American submarines. The escort carrier Taiyo, destroyers Yunagi and Asakaze, two oilers, four transports, and three kaibokans were sunk, with 7420 soldiers of the 26th Division lost. The submarine Harder was the only American vessel sunk in retaliation. Kajioka's Hi-72 convoy, returning from Luzon, was also attacked, resulting in the sinking of his flagship, the kaibokan Hirato, and the loss of the destroyer Shikinami, three transports, and one oiler. Despite these setbacks, advance units of the 8th Division, 2nd Tank Division, and 61st Independent Mixed Brigade successfully reached the Philippines in September.

I would like to take this time to remind you all that this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Please go subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry after that, give my personal channel a look over at The Pacific War Channel at Youtube, it would mean a lot to me.

After months the siege of Myitkyina had finally ended. The Japanese had held out as long as they could, but lack of supplies and rather terrible leadership lost them the fight. Meanwhile, in China, Japanese offensives intensified, challenging Chinese defenses and leadership. It seemed war was coming to the Philippines, where the Japanese prepared to fight to the death.

Last time we spoke about fall of Tinian and battle of Sansapor. Following the capture of Noemfoor and Biak, the Allies advanced to the Vogelkop Peninsula, constructing vital airbases. MacArthur initially focused on seizing Sorong and Waigeo Island, but operations accelerated, making Klamono oilfields non-viable, and oil rehabilitation projects in the Dutch East Indies were prioritized by the Joint Chiefs of Staff. MacArthur planned reconnaissance in the Mar-Sansapor area. The 6th Division launched Operation Typhoon, and Task Force 77 executed landings on July 30, 1944. Airfields were built, and patrols eliminated Japanese forces. Meanwhile, Tinian saw intense fighting, with Marines securing key objectives by July 31. Following massive bombardments, Marines continued advancing, encountering heavy resistance but eventually declaring Tinian secure on August 1. Guam operations saw similar advances with coordinated attacks overcoming Japanese defenses.

This episode is the Fall of Guam

Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more  so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945. 

This weeks podcast brings us back into the intense action in Guam. As we previously observed in Guam, General Shepherd’s Marine brigade had effectively captured the Orote Peninsula, while General Turnage’s 3rd Marine Division had reached the designated beachhead line, pushing back a weakened Japanese force retreating northward. Meanwhile, General Bruce’s 77th Division maintained control of the southern beachhead line, preparing for a general eastward assault. An engineer battalion began constructing a supply road towards Yona, a project that ultimately failed to support the infantry's advance.

On July 30, Turnage’s Marines and the infantrymen sent patrols to gauge the strength of the Japanese forces, but dense foliage obscured enemy movements. Geiger eventually concluded that defensive positions were likely near the Agaña-Pago Bay Road. He planned an initial advance toward the general line of Agaña-Famja-Pago Bay, followed by a northeastward attack. Turnage’s Marines were assigned to capture the capital, Agaña, and the strategic Tiyan Airfield on the left, while Bruce’s infantry aimed to secure the Pago Bay area on the right.

Following two days of intense artillery and naval bombardment, Geiger’s offensive commenced at 06:30 on July 31. On the left, Turnage’s units encountered minimal resistance. The 3rd Marines, now led by Colonel James Stuart, quickly occupied the ruins of the abandoned Agaña and moved beyond the O-1 Line to secure the main northbound roads. The 21st Marines advanced through dense underbrush, reaching O-1 after neutralizing an enemy pillbox near Famja. When Lieutenant Colonel Duplantis 3rd battalion, 21st marines brought his command post forward, a curious incident occurred which illustrated the confusion of the Japanese. Someone in the battalion command group sighted one of the bypassed enemy groups, estimated to be about 15-20, led by an officer, moving toward the new CP area. The Marines held their fire, and when the small unit got to within 150 yards of the waiting men, an interpreter called to the Nipponese to surrender. Apparently thinking they had finally reached friendly lines, they started forward, then stopped to hold a hurried conference. The chattering was interrupted by the interpreter urging them forward, but by this time the aggregation had decided they were in unfriendly territory. They broke and ran in all directions; the Marines opened fire, killing and wounding about half of the intruders. Those still alive escaped into the protecting foliage. The 9th Marines destroyed a delaying detachment at Ordot and two tanks during their successful push to O-1.

Colonel Hamilton’s 1st and 3rd Battalions, along with Colonel Tanzola’s 3rd Battalion, advanced to the right, moving through steep slopes and narrow gorges in columns. They successfully reached Yona and the Pago River without encountering any opposition. With the Reconnaissance Troop protecting the south flank, General Bruce's 77th Infantry Division started toward the east coast of Guam at 7:00, 31 July. Elements of the 307th, with 3/305 attached, led the way in a column of battalions. Lack of enemy resistance permitted battalions to move with companies in column; even so, the march proved most difficult. The troops initially scaled steep slopes, slid down into narrow gorges, and followed along the foothills southwest of the central mountain range of Guam. For a time, vehicles followed, but soon the terrain became so rough that even jeeps could not traverse it. As one infantryman later wrote: “The distance across the island is not far, as the crow flies, but unluckily we can't fly. The nearest I came to flying was while descending the slippery side of a mountain in a sitting position. . . . After advancing a few yards you find that the [bolt] handle of the machine gun on your shoulder, your pack and shovel, canteens, knife, and machete all stick out at right angles and are as tenacious in their grip on the surrounding underbrush as a dozen grappling hooks. . . . The flies and mosquitos have discovered your route of march and have called up all the reinforcements including the underfed and undernourished who regard us as nothing but walking blood banks. We continue to push on. . . .” 

During this movement, Hamilton’s Company L liberated 2,000 Guamanians from a concentration camp near Asinan. Soldiers willingly gave their rations and cigarettes to the undernourished men and women who were almost overcome with joy at once again seeing Americans. Men of the 77th Division soon forgot the long, tiresome cross-island march as the full realization of the expression, "liberation of enslaved peoples," came to the troops. Following the Orote operations, Shepherd’s brigade was ordered to take over the southern half of the beachhead line from Inalas to Magpo Point, relieving the 305th and 306th Regiments. On August 1, Geiger’s northward push continued, with the 305th moving to the Yona area and the 306th heading to Pago Bay. The 305th and 307th Regiments advanced slowly through rough terrain without opposition, reaching the O-2 Line by nightfall. On the left, Turnage began his advance with three regiments abreast, but the 3rd and 9th Marines eventually pinched out the 21st upon reaching the intermediate D-2A Line. At 15:00, these two regiments resumed their advance against slight resistance and reached O-2 by nightfall. The main challenge during this period was moving supplies forward, as both divisions relied on the same coastal road, heavily mined by the Japanese. With the rapid advance came the necessity to move supply distribution points closer to the front. Trucks began to roll over the already crowded coast highway to establish an advanced division dump in the Agaña Central Plaza area. Artillery units started to displace forward so that continuous direct support would be available to the assault units. This added traffic, plus the fact that the 77th Division would have to move supplies over the same road, presented a problem to the engineers. In an effort to alleviate the situation, the 25th Naval Construction Battalion and the 19th Marines put all available men to work improving existing roads and trails. Yet despite these efforts, by August 1, the problem of getting supplies forward was becoming more serious. The main coast road –and only one that ran from west to east on northern Guam– over which all traffic had to move had been heavily mined. The Japanese had placed aerial bombs and single-horned mines at road junctions and intersections in and around Agaña. In addition to being mined and heavily congested, the two-lane, hard-surfaced Agaña-Pago Bay Road was overused, poorly maintained and, with frequent rain, soon deteriorated badly. In the end, the engineers could not properly maintain the road and still allow the essential supply convoys through. On the morning of August 2, artillery and warships bombed the new positions General Obata was trying to establish around Mount Santa Rosa. Meanwhile, the Marines and infantrymen continued their pursuit northwards, aiming to reach the O-3 Line behind Japanese delaying positions at Finegayan and Mount Barrigada.

On the left, the 9th Marines swiftly captured Tiyan Airfield, but their advance was hampered by dense jungle. Despite this, they managed to gain 1800 yards while the 21st Marines cleared the Saupon Point-Ypao Point area of small enemy groups. On the right, the 77th Division's advance was initially covered by a 14-tank patrol conducting reconnaissance in the Barrigada area, where they faced heavy resistance. The 307th Regiment quickly secured Price Road, but Tanzola’s 3rd Battalion was halted by concealed machine-gun positions near Barrigada Well. Subsequently, the 307th, now led by Lieutenant-Colonel Thomas Manuel, was also stopped near the village, with Manuel’s 1st and 3rd Battalions becoming mixed up just as an enemy tank broke through their lines. After numerous failed attempts to dislodge the enemy, Companies G and E managed to penetrate the Japanese lines in the afternoon, although Company G had to be evacuated by nightfall. Meanwhile, the 305th moved up and consolidated its lines with the 307th. Since Bruce’s infantrymen failed to link up with the Marines, Colonel Butler’s 2nd Battalion was sent to fill the gap between the divisions. Following a reorganization, the 305th and 307th Regiments attacked again the next morning, encountering surprisingly little resistance as they moved through Barrigada and secured the vital well. The 77th Division had a special reason for wanting to reach Barrigada quickly. The reservoir and pump, located 100 yards northwest of Road Junction 306, could supply 20000 gallons of water daily to the troops. Until now, the men of the division had quenched their thirst by getting water from streams and creeks. But in the northern part of Guam there were no streams, and the reservoir would be the only source of supply. With tanks leading the way, Manuel’s 3rd Battalion advanced quickly and reached the summit of Mount Barrigada, although the 2nd Battalion lagged behind. Meanwhile, the 305th Regiment engaged in several isolated skirmishes but still managed to link up with the 307th.

To the left, Turnage had also resumed his advance toward O-3. Although the 3rd Marines encountered little resistance and reached their objective successfully, Colonel Craig’s 1st Battalion was halted by heavy fire near Finegayan after destroying a Japanese stronghold. That night, the Marines faced mortar and tank attacks, but these assaults made little progress. Meanwhile, as the 22nd Marines patrolled southern Guam, the 4th Regiment was held in reserve at Toto. On August 4, the remainder of Shepherd’s brigade began moving to Toto, leaving only Colonel Schneider’s 1st Battalion and the 6th Defense Battalion behind. Following Turnage’s orders, the 21st Marines were positioned between the other two regiments to reach O-3 near Dededo. At the same time, Craig’s 1st Battalion made minimal gains toward Finegayan, while the rest of the 9th Marines advanced to O-3 and successfully severed the Finegayan-Barrigada Road. To the right, Bruce’s infantrymen, following an artillery barrage, advanced to O-3, overcoming terrain difficulties and securing the objective line by nightfall. On August 5, Turnage’s three regiments continued their advance, pushing past O-3. The 3rd Marines reached Amantes Point, and Craig’s 1st Battalion finally overran the remaining Japanese positions at Finegayan. Behind them, Shepherd’s brigade moved to Dededo, preparing to take over the left flank for the final push. Meanwhile, as the 306th Regiment relieved the exhausted 307th, Tanzola’s men continued to fight through the dense jungle, with his 2nd Battalion reaching the O-4 Line by nightfall.

During a nighttime raid, the 1st Battalion was targeted, resulting in 48 casualties. Following this, the 2nd Battalion encountered the tanks the next morning, eventually neutralizing them but suffering an additional 46 casualties. Bruce’s regiments gathered at O-4 to prepare for an attack on Mount Santa Rosa, where Obata had concentrated his forces. Turnage’s regiments also resumed their attack, advancing with minimal resistance. Geiger initiated the final push on August 7, with Turnage’s Marines facing minor obstacles due to jungle terrain. Despite this, the 3rd Marine Division reached the O-5 Line by nightfall. Shepherd’s brigade swiftly progressed along the coast, joining forces with the 3rd Marines. Meanwhile, the 306th and 307th Regiments prepared for a coordinated attack. Bruce's strategy involved the 306th securing ground north of the Japanese defensive lines, the 307th leading a tank-infantry assault on Yigo, and the 305th closing in on Mount Santa Rosa. Once each objective was secured, Santa Rosa would be encircled from Anao to Lumuna Point, leaving the enemy with no escape route except into the sea.

By midday, despite facing delays from the narrow road and enemy sniper activity, Manuel's tanks surged ahead of the infantry, veering right to swiftly eliminate several Japanese machine-gun positions at the road's edge. However, their advance was halted by heavy Japanese fire from the left rear as they crested a slight elevation. In a wedge formation, commanded by Captain Seger from his tank at the right rear, the light tanks swept rapidly over the slight crest. As they pushed on there was an explosion to the left of the tanks directly in front of Seger. He radioed to Colonel Stokes: "There's a burst in front of me; could be mine or antitank gun. Call for the mediums." Just before the mediums came up more explosions sounded from the left. The tankers could not locate the source of the fire because of the dense woods to the left and the absence of flash and smoke. When the mediums reached the open area, their crews could tell that the light tanks were in trouble but they could not see where the fire was coming from. Only when they advanced up the slight rise and began themselves to have steel shrapnel and bullets smash on the left of their hulls and turrets did they turn and pour fire back into the woods at the left rear. Fifty yards behind the stricken tanks the infantrymen struggled to push through the positions by the road that the tanks had overrun. Japanese still fired from a pillbox that had been blasted by the medium tanks as they raced ahead. The troops put rifle and machine-gun fire into it. They threw six grenades before one landed inside the position. The enemy continued to fire from it. A flame-thrower man maneuvered cautiously up to the position and put the searing flame in through an opening. The heat was too much for the defenders; one of them scurried out and fell before the American guns. The enemy position, so skillfully concealed from the front but vulnerable from the rear, was built around two light tanks. Two antitank guns, two 20mm guns, six light and two heavy machine guns, plus about a makeshift battalion of infantry added their fire to make the Yigo defense formidable. One medium was hit in its gas tank. Flames shot out of the bottom and quickly enveloped the sides. The crew hastily clambered out of it just before the ammunition inside began exploding. Another tank stalled under the heavy fire. As bullets hit the vehicle, the tankers dashed for a shell hole. Some of the mediums moved on out of the area. One of them tried to sweep around to the right below the line of enemy fire and promptly threw a track. As more tanks came up, they swung their cannons and machine guns around for brief fire on the enemy positions to the left and then passed on to the objective ahead. The leading light tank had similarly been destroyed and another was destroyed shortly afterwards.

The American armor suffered losses against this well-concealed enemy position. Fortunately, Colonel Smith's 3rd Battalion, encountering minimal resistance in the jungle, directed Company K to flank the Japanese from the rear, catching them off guard and eliminating them without casualties. This enabled the 307th to secure the Yigo area and the elevated terrain to the northeast in readiness for the Santa Rosa assault. Meanwhile, the 306th consolidated west and north of Yigo, while the 305th advanced to the Lumuna Point line. The day also witnessed the inaugural combat flights of Marine planes from the newly completed Orote airfield over Guam. By nightfall, Obata dispatched his remaining tanks on a futile infantry-tank raid against the 306th, which repelled the attack successfully. On August 8, as the 305th and 307th Regiments closed in on Santa Rosa, Smith's forces continued north towards Lulog to complete the encirclement. Although the 306th captured Lulog, the 307th encountered minimal resistance in capturing Santa Rosa. Consequently, Bruce instructed Smith to push north towards Salisbury, but progress was limited by day's end.

On the left flank, Shepherd’s brigade and Turnage’s division continued their advance. The 22nd Marines progressed to Ritidian Point, establishing three roadblocks. The 4th Marines secured O-5 and advanced to RJ 462. The 21st Marines patrolled the Chaguian area, while the 3rd Marines fought through dense jungle to defeat a Japanese roadblock and reach the Salisbury-Tarague Road. Patrols returned late in the afternoon and reported few enemy contacts, but one such unit from 3/21 had discovered a Japanese truck containing the bodies of 30 native men who had been beheaded. According to the official account of the incident, the Guamanians, found near Chaguian, had not been dead more than 24 hours. The next morning another patrol found an additional 21 bodies in the jungle near the same village.

The 9th Marines faced heavy resistance as they dug in around Salisbury, close to Obata’s headquarters. A tank-infantry counterattack targeted Stuart’s 2nd Battalion at night, dispersing the enemy but necessitating retreat due to the threat of Obata’s remaining tanks. Stuart’s 3rd Battalion and Butler’s 1st Battalion attacked the next morning but found no sign of the tanks. Meanwhile, the 77th Division patrolled the Yigo-Salisbury area, and the 9th Marines advanced rapidly towards the northeastern coast before redirecting patrols to Savana Grande, where 3000 Japanese were suspected to be hiding. Following artillery bombardment, the Marines occupied Savana Grande and Pati Point but found little evidence of Japanese presence. Patrols from the 4th and 22nd Marines also reached the northern beaches, leading Shepherd to declare an end to organized resistance in the brigade zone. The last known resistance persisted in the 3rd Marines’ sector, where Obata’s tanks were last observed.

Accordingly, on August 10th, Stuart’s 2nd Battalion initiated an attack to the east, establishing contact with two tanks on the road. Swiftly disabling these tanks, the Marines pressed forward, swiftly overpowering the Japanese positions and successfully seizing a total of seven abandoned tanks. By 11:30, Geiger declared an end to organized resistance on Guam. American casualties up to this point totaled 1214 killed, 5704 wounded, and 329 missing, with 10971 Japanese reported dead. Despite this announcement, Obata persisted at Mount Mataguac, fending off Bruce’s infantry patrols since August 8th. Finally, on August 11th, Smith’s 1st Battalion launched a meticulously planned attack supported by tanks and mortar barrages, stunning the defenders and enabling soldiers to destroy cave entrances. When the caves were reopened four days later, more than 60 bodies, including General Obata’s, were found inside the well-fortified command post. Following the battle, Major-General Henry Larsen’s garrison forces maintained intensive patrols on Guam throughout the remainder of the year under close scrutiny from Island Command. 

Island Command, Guam under General Larsen, had taken command of Orote Peninsula and Cabras Island on August 2 to begin base development, namely the airfield and seaport. It then assumed formal command of Guam on August 15. Island Command grew rapidly as it took over all logistics, construction, and civil affairs tasks in stages. It included the 5th Naval Construction Brigade with the 27-29th Seabee Regiments with 12 Seabee, four Army, and one Marine engineer battalions plus "Lion 6", a Navy advance base force responsible for building and operating Naval Operating Base, Guam. Island Command was also responsible for the care of 21000 Guamanian civilians and built replacement housing for 15000. Both the 3rd and 77th Divisions maintained an infantry regiment and an artillery battalion in the north to deal with diehards. Up to 80 Japanese were killed each day during the first two weeks after Guam was declared secure. The nightmare would continue for the Japanese for some time to come. The 3rd Marine Division took over sole responsibility for island defense under Island Command on August 22. The 1st Provisional Marine Brigade then departed for Guadalcanal on August 31, where it would be expanded into the 6th Marine Division to fight on Okinawa. The 3rd Marine Division finally remained on the island to train for Iwo Jima, as did the 77th for Leyte and later Okinawa.An estimated 8500 Japanese soldiers remained scattered in the jungles of the north and the mountains of the south, engaging in guerrilla warfare until the war's conclusion. However, most were either killed or captured before then. The final tally for Guam by August 1945 included 18377 Japanese killed and 1250 captured, with American losses totaling 1407 killed, 6010 wounded, and 376 missing.

By the conclusion of the Marianas Campaign, the Japanese suffered casualties exceeding 50,000, while the Americans solidified their control by positioning themselves strategically along the inner ring of Imperial defenses. This positioning enabled them to cut off the flow of supply ships and submarines that had previously supported remote enemy garrisons. Additionally, the Americans established a naval base with the capacity to support one-third of the Pacific Fleet, set up extensive forward supply depots, which posed a threat of swifter assaults on the Japanese home islands, and constructed several B-29 airfields. These airfields facilitated the unleashing of devastating aerial bombardments on Japan, bringing the full force of total war to its people through a relentless barrage of explosives and fire. That finishes up the story of the Marianas, now we need to travel back over to New Guinea.

Despite the initial success of the Japanese offensive, General Hall's forces successfully halted the enemy advance and reorganized their river line by July 15th, although there remained a 1500-yard gap in the center. Aware of this vulnerability in the American defenses, the Japanese exploited it, particularly under the cover of darkness. However, Colonel Starr's 3rd Battalion actively patrolled this area and occasionally engaged with the enemy, such as the night of July 14th when they eliminated 135 Japanese soldiers. Nonetheless, General Cunningham reported that his South Force had expanded its lines nearly 1000 yards beyond its designated sector without encountering any elements of the 124th Regiment. Consequently, on July 15th, Starr concluded that his regiment had not advanced as far south as previously thought, prompting him to order his units to adjust their positions southward and fortify their defenses along the Driniumor River towards Cunningham's Troop E location.

The next morning, the 3rd Battalion began its journey southward to close the gap. However, upon reaching the area by nightfall, Troop E came under attack from two companies of the 1st Battalion, 239th Regiment. As the cavalrymen sought cover from this assault, Starr’s 3rd Battalion also faced fire from Colonel Nara’s 3rd Battalion, which had redirected southward following its defeat at the Paup villages. This division split the American force, with Companies L and M encountering increasing resistance as they pressed southward towards South Force lines, while Companies I and K fortified their positions for the night. Despite the engagement resulting in the death of several Japanese soldiers and the narrowing of the gap to 500 yards, nightfall on the coast witnessed General Adachi’s Coastal Attack Force launching suicide banzai charges towards Anamo, only to be swiftly repelled by the defenders' lethal machine-gun fire, resulting in the complete annihilation of the force. In the rear, Colonel Howe’s 1st and 2nd Battalions were dispatched by Hall to eliminate remaining enemy units west of the Driniumor. Over the course of two days, in a series of complex and occasionally disjointed company maneuvers, the Americans successfully subdued Colonel Nara’s remaining troops in the area. Meanwhile, further south, Japanese groups were spotted crossing the Driniumor at a fording point approximately 2500 yards south of Afua, prompting Cunningham to deploy Troop A to strategic high ground behind the river to halt westward Japanese movements. There, the 78th and 80th Regiments, led by Major-General Miyake Sadahiko, were gathering in preparation for a fresh offensive.

Adachi devised a fresh strategy, envisioning Miyake's forces striking Afua from the southern front, while the 239th Regiment prepared to advance against the Kawanaka Shima area. Furthermore, the retreating 237th Regiment and the reserve 66th Regiment received orders to head south to reinforce future assaults by the 20th Division, although they wouldn't reach the destination until July 25. Meanwhile, as the Miyake Force gradually maneuvered into position on the right and rear of Cunningham’s 1st Squadron, Starr faced ongoing challenges in filling the gap in the center, eventually managing to close it by the morning of July 18. That night, Miyake finally dispatched two battalions to launch an assault on the 1st Squadron's command post and the adjacent perimeter held by Troop A, successfully pushing them back 250 yards to the northeast. However, swift reinforcements enabled Cunningham to recapture the lost ground the following morning, prompting the enemy to retreat northwest into the jungles. By afternoon, fresh Japanese units had once again encircled the Troop A position; yet, after an effective artillery barrage, the cavalrymen thwarted Adachi’s plans by pushing 600 yards to the southwest. Following this triumph, on July 21, Troop C relieved the battered Troop A; Howe’s battalions successfully established a patrol base on the East Branch of Koronal Creek; and Starr’s 2nd Battalion relocated to Palauru to enhance outer security southwest of the airfield. Concurrently, on July 19, the initial units of General Wing’s 43rd Division commenced landing at Aitape, with the 2nd Battalion, 169th Regiment subsequently assuming control of approximately 1000 yards of the river line on the right flank of the 124th Regiment by July 22.

Meanwhile, Adachi instructed the still-reorganizing Miyake Force to launch another assault on Afua from the north and west, while General Nakai’s 79th Regiment crossed the Driniumor River to strike from the south. On July 21, in the evening, Miyake initiated an attack on Troop C’s position, effectively isolating it from the remainder of South Force. Despite the cavalry's resistance against the intense Japanese onslaughts, Miyake's units successfully thwarted Cunningham’s efforts to relieve the besieged troop in the subsequent days. Faced with the threat to his command post and reluctant to divert more forces from the river defenses, Cunningham ultimately opted to establish a new defensive line 1000 yards north of Afua, consequently abandoning the town and leaving Troop C stranded.

It was not until the night of 21-22 July that the Japanese forward units were able to organize for any sort of attack. During that night, elements of the 124th Infantry received considerable mortar, machine gun, and rifle fire from east of the Driniumor. This fire increased the next morning, and about noon the 3d Battalion, 124th Infantry, was attacked from the west by elements of the 237th Infantry. The first Japanese attack was ". . . finally broken up by a bayonet charge . . ." conducted by elements of the 3d Battalion, 124th Infantry, but other attacks followed as troops of the 1st Battalion, 239th Infantry, tried to move across the Driniumor from the east, striking both the 124th Infantry's unit and part of the 2d Battalion, 169th Infantry. Before dark on the 22d, the 3d Battalion, 124th Infantry, counted 155 new Japanese dead in its area. That unit and the 2d Battalion, 169th Infantry, reported their own losses as five killed and twenty-five wounded.

Despite further unsuccessful attempts to reopen the river crossing by the 1st Battalion, 239th Regiment, Adachi eventually decided on July 25 to dispatch the 41st Division south to reinforce the southern front. Following the fall of Afua, Hall directed Howe’s battalions to depart from their East Branch base and reinforce Cunningham’s South Force, successfully arriving at the new defensive line by July 23. With these reinforcements in place, Cunningham early in the afternoon of the same day decided to deploy Troops A and B to advance westward toward Troop C, while Howe’s 2nd Battalion pushed southeast to support the isolated troop. Despite the lack of coordination in the attack, infantrymen managed to infiltrate Troop C's perimeter from the northwest, aiding in repelling a fierce Japanese assault from the southwest, while the cavalry troops reclaimed Afua and established new defensive positions.

Despite an initial triumph, American efforts to advance on July 24 were thwarted by the resolute defense of the Japanese, who fiercely guarded all paths, trails, and ridges in the densely forested terrain northeast of the perimeter. However, on July 25, Companies E and B under Howe surprisingly made contact roughly 500 yards north of the besieged forces, encountering minimal resistance, which allowed the beleaguered Troop C to retreat. With Troop C relieved, Howe’s units continued their assault southward and westward toward the Afua-Palauru trail, driving the Japanese forces into the Torricelli Mountains. Nonetheless, a significant number of Japanese troops remained within a triangular area delineated by the sloping ground, Afua, and Company G's ridgeline position, persistently harassing Cunningham’s forces. Throughout the night, additional Japanese reinforcements, including the 66th Regiment, maneuvered behind Howe’s 2nd Battalion, securing control over trails leading southeast through dense jungle from the banana patch to a point on the Afua-Palauru trail near the 2nd Battalion's command post. Consequently, on July 26, Howe’s 1st Battalion was withdrawn toward the sloping ground, with the 2nd Battalion expanding its positions to the east to cover the vacated area. On July 27, the battalion launched a successful southward attack; however, menacing Japanese movements to the west compelled the American forces to withdraw, despite other units under Cunningham also repelling enemy advances. Subsequently, Cunningham reorganized his lines on July 28 to strengthen defenses, anticipating imminent large-scale Japanese assaults. Nonetheless, on July 29, the 1st Squadron and the 2nd Battalion renewed their offensive toward the south and west into the Triangle, yet this time Adachi’s determined defenders successfully rebuffed them.

Therefore, local patrol activity was the primary focus on July 30 and 31 while Cunningham devised plans for another offensive into the Triangle. Major combat activity revolved around the withdrawal of Company G, 127th Infantry, from its exposed outpost west of Afua. On the afternoon of the 29th the unit had been driven more than 400 yards east of its original position by Japanese attacks and had established new defenses on high ground about 300 yards west of Afua. On the 30th the company was surrounded and spent all day fighting off a series of small-scale attacks. The next morning it fought its way north to the dropping ground, where it arrived about 1330. Thence, it moved on to the Driniumor and joined the rest of the 2d Battalion, 127th Infantry, which had switched positions with the 3d Battalion.

During the period from 13 to 31 July, South Force had suffered almost 1,000 casualties, of which 260 had been incurred by the 112th Cavalry. For the understrength cavalry regiment, this was a casualty rate of over 17 percent. The 2d Battalion, 127th Infantry, had also lost heavily and was in need of rest, reorganization, and re-equipment--needs which had prompted General Cunningham to change the places of the 2d and 3d Battalions, 127th Infantry. South Force casualties were as follows: 106 killed, 386 wounded, 18 missing, and 426 evacuated as a result of disease and sickness. South Force estimated that it had killed over 700 Japanese.

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With the capture of Guam, the Marianas campaign had finally come to an end. Yet it seemed apparent to the frontline commanders, the closer the island hopping got to the Japanese home islands, casualties were exponentially mounting. How much American blood was it going to take to end the Pacific War?

Last time we spoke about invasion of Guam and Tinian. Japanese forces, led by General Obata on Guam and Colonel Ogata on Tinian, prepared defenses with trenches, pillboxes, and artillery. The Americans bombarded these defenses extensively. Despite resistance, they successfully landed on Guam and Tinian, securing beachheads. Intense fighting ensued, with Marines facing heavy casualties. Despite Japanese counterattacks, American forces gradually expanded their footholds, leading to the eventual containment of the Japanese on Orote Peninsula. The Japanese launched a fierce assault against Marine positions on Guam, engaging in close combat with heavy casualties on both sides. Despite initial success, the Japanese offensive was repelled by intense artillery and machine-gun fire, leaving the remaining enemy forces to defend Orote Peninsula. On Tinian, after extensive naval bombardment, Marines landed successfully, repelling Japanese counterattacks and establishing a beachhead. Despite heavy Japanese casualties, the Marines suffered relatively few losses, ultimately breaking the enemy's resistance.

This episode is the Battle of Sansapor

Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more  so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945. 

Following the successful capture of Noemfoor and Biak, the Allies possessed ample air and supply bases to advance to the Vogelkop Peninsula, fulfilling General MacArthur's aim of establishing a vital airbase supporting further operations northwestward, potentially towards Mindanao or via Halmahera. Initially considering Manokwari as a non-critical objective, MacArthur's plan centered on seizing Sorong and Waigeo Island for crucial supply and air bases in New Guinea. However, the rapid pace of Pacific theater operations raised doubts about the feasibility of bringing the Klamono oilfields into production before the war's end, prompting the cancellation of exploitation plans by the Joint Chiefs of Staff. 

The Joint Chiefs assumed responsibility for the direction and coordination of oil rehabilitation projects in the Dutch East Indies and undertook necessary liaison with British and Dutch agencies. By mid-February 1943 they had decided that military units would at least start all oil rehabilitation and exploitation projects in the Indies, although the final development of the oil resources might be left to civilian agencies. MacArthur was instructed to plan the location and timing details of oil rehabilitation projects in the Indies, and, subject to the Joint Chiefs' approval, execute those plans. At the same time, the Joint Chiefs directed that the organization of special military petroleum production and refining units begin. The requisite troops, most of them US Army engineers and many especially recruited from civilian pursuits, soon began to assemble and train in California. Orders were also placed with manufacturers for the special production and refining equipment, which was sent to California as it was obtained. While these steps were being taken to coordinate oil rehabilitation projects, it had become obvious that in accordance with MacArthur's plans the first significant oil producing region that could be recaptured in the Netherlands East Indies would be the Klamono district on the Vogelkop Peninsula. The Klamono oil was especially valuable in that it could be used as fuel for naval vessels without refining beyond a little "topping" to remove excess naphtha. With limited effort, the wells could be expected to bring in some 16000 barrels of crude oil per day; with additional development, about 25000 barrels. Such production would presumably save the Allies considerable shipping space and time, for, instead of the long haul from United States ports, navy bunker fuel could be produced and topped as necessary much nearer to the scene of combat.

With the oilfields no longer a priority and aerial surveys indicating unsuitable conditions for airstrips on Waigeo, MacArthur opted for ground reconnaissance of the Mar-Sansapor area. This exploration revealed promising landing beaches and potential airfield sites, albeit requiring significant effort to develop. Consequently, MacArthur directed Alamo Force to secure the lightly-defended Sansapor-Mar area instead of Sorong-Waigeo, scheduling a landing for July 30. General Krueger tasked General Sibert’s 6th Division with Operation Typhoon, designating the 20th Regiment at Wakde-Sarmi as reserve and arranging relief by Major-General John Persons’ 31st Division.

Admiral Fechteler’s Task Force 77 had devised a strategy: to deploy Colonel Forbie Privett’s 1st Regiment, consisting of the 1st and 2nd Battalions, onto the Red Beaches northeast of Mar. Concurrently, Sibert’s 6th Cavalry Reconnaissance Troop was tasked with securing Middleburg Island. Following the landings, airfields were to be constructed at these sites. The subsequent phase involved Privett’s 3rd Battalion executing a shore-to-shore movement to establish a PT base on Sansapor’s Green Beach, scheduled for the day after the initial landings.

To set this plan in motion, the 31st Division commenced unloading operations at Maffin Bay on July 14 and successfully relieved Sibert’s units four days later. The two regimental combat teams of the 31st Division, the 155th and the 167th, which operated at Wakde-Sarmi had no previous combat experience but received much valuable training in a series of patrol actions, company-sized scouting missions, and battalion reconnaissances in force. General Persons wanted to mount an offensive to drive the Japanese from a main line of resistance which they had established in the low hills between Metimedan Creek and Sarmi, but the demands for labor at the Maffin Bay staging area and the necessity for committing many troops to the defense of that area made it impossible to assemble sufficient strength for such an attack. Then, by the time the 6th Division's requirements had been met, the 31st Division itself had to begin preparations for another operation. The 31st Division therefore had to confine itself principally to its patrolling missions, both west and east of the perimeter. Patrols east of the perimeter were sent out to hunt down stragglers from the Japanese Hollandia garrison, and most of them, comprising armed natives of the Wakde-Sarmi area, were led by a Dutch officer, 1st Lt. C.J. Sneeuwjagt. Meanwhile, work went on at the Maffin Bay staging area; and during the period July 18-August 31 a daily average of 2,500 tons of various supplies was unloaded at the bay. During the same period the 31st Division lost 39 men killed, 195 wounded, 34 injured, and 3 missing. The division in turn killed 294 Japanese, found 497 dead, and captured 14 others.

However, the deployment of the 6th Division faced delays due to heavy congestion in the Wakde-Sarmi area. It wasn’t until July 27 that Sibert’s combat units began departing from Maffin Bay towards Sansapor. Maintaining the element of surprise was paramount to General Krueger, hence no preliminary naval or air bombardment was conducted in the Sansapor-Mar area. Instead, General Kenney’s aircraft targeted Japanese bases at Manokwari, Sorong, and the Halmahera-Ceram-Ambon region.

To further deceive the Japanese, Fechteler’s convoy took a circuitous route to approach Sansapor, apparently arriving undetected around 05:00 on July 30. As anticipated, no opposition was encountered, and the first wave successfully landed at 07:01. While Privett’s troops swiftly unloaded on the mainland, one LST proceeded toward Middleburg Island. By 07:30, it began deploying the amtracs carrying the reinforced 6th Cavalry Reconnaissance Troop, which safely landed by 08:00. Encountering no resistance, the island was promptly secured, and the troop regrouped before setting sail for nearby Amsterdam Island, which was also secured unopposed by 11:30.

Upon returning to the mainland, following the incident where three unarmed Japanese were killed, Privett’s 2nd Battalion proceeded inland and eastward. They successfully established defenses along low hills roughly 800 yards from the shore. Meanwhile, the 1st Battalion encountered challenges navigating through dense jungle undergrowth. At 07:40, the 3rd Battalion landed and moved west along the beach to the Wewe River mouth, preparing for the next day's advance to Sansapor. By nightfall, all units were ashore, securing the desired beachhead perimeter. The following day, Privett’s 3rd Battalion embarked for Green Beach at Cape Sansapor, meeting no resistance upon landing at 08:44. They then proceeded south along the beach to secure Sansapor Plantation and Village by 10:00. While Cape Sansapor proved unsuitable for the planned PT boat base due to reef-bound shorelines and poor beaches, Amsterdam Island emerged as a promising alternative location. Subsequent operations in the Sansapor-Mar area involved patrolling to eliminate scattered Japanese groups, expanding the beachhead, and safeguarding airfield installations. A significant event occurred on August 3 when 92 sick or wounded Japanese and Formosan troops were captured at a Japanese hospital near Cape Opmarai. Concurrently, General Anami acknowledged the untenable positions on the northeastern Vogelkop and General Ikeda’s 35th Division abandoned Manokwari on July 16, embarking on a challenging overland march towards Sorong with limited supplies. Around the same time, General Teshima’s headquarters at Manokwari and other small garrisons in the region commenced an overland journey to Windehsi.

By August 15, as units of the 35th Division approached the Kor River, the 63rd Regiment moved into the vicinity, engaging in skirmishes with retreating Japanese forces. In these encounters, they eliminated 17 enemy combatants and captured 4. By August 31, the 63rd Regiment had further success, neutralizing 155 Japanese soldiers and capturing an additional 42, with minimal losses on their own side: 3 soldiers killed and 4 wounded. Similarly, patrols from the 1st Regiment on the western flank encountered retreating Japanese forces, resulting in the elimination of 197 enemies and the capture of 154, with only 4 soldiers wounded by the end of August. The total casualties for the Typhoon Task Force amounted to 14 killed, 35 wounded, and 9 injured, while they managed to account for 385 Japanese and Formosans killed and 215 captured. Ikeda’s division remnants reached Sorong on August 25 after enduring a grueling 40-day march. Additionally, construction of the Middleburg strip was successfully completed by August 14, and the Mar Drome was slated to be operational by September 3 to accommodate Kenney’s fighters and medium bombers.

Transitioning to Tinian, following the successful landing on July 24 and the subsequent destruction of the Japanese counterattacking force, General Schmidt's primary objectives for July 25 included landing the 2nd Marine Division and expanding the beachhead. While General Watson’s Marines disembarked swiftly, General Cates’ 4th Marine Division initiated their advance at 10:00. Colonel Jones’ 23rd Marines navigated through dense canefields and underbrush along the coast beyond the O-1 Line. Colonel Batchelder’s 25th Marines executed an enveloping maneuver against Mount Maga, securing its summit after intense combat supported by mortars and tanks. Colonel Hart’s 24th Marines swiftly moved south and eastward, reaching the O-2 Line.

Upon arrival, Colonel Wallace's 8th Marines assumed control of the far left flank and proceeded slowly through the rugged coastal terrain and dense undergrowth toward Ushi Point. Following the successful capture of a Japanese stronghold, the Marines advanced unopposed, advancing 200 yards past O-2 swiftly. However, the day brought hardship for the 14th Marines, facing heavy counter-battery fire resulting in the loss of 13 soldiers killed and 22 wounded. Admiral Mitscher's Task Force 58 conducted a reconnaissance-in-force of the western Carolines and launched a third raid on the Volcano-Bonin Islands to thwart enemy bomber interference, resulting in the destruction of five ships, damage to others, and the loss of 13 enemy planes for only 16 aircraft lost. The next day, Schmidt's undermanned divisions, later reinforced with 1782 replacements to fill Saipan-related gaps, commenced the advance to the O-3 Line. While the 23rd Marines steadily advanced with minimal resistance towards the vicinity of the O-4 Line, the bolstered 25th Marines cleared Mount Maga and, securing the summit of Mount Lasso, advanced into the O-4A Line virtually unchallenged. Meanwhile, the 8th Marines rapidly secured the Ushi Point flats and its airfield, Colonel Stuart's 2nd Marines swiftly advanced eastward, securing Asiga Point upon reaching the east coast by 12:30, and Colonel Riseley's 6th Marines, after landing, pushed southward to establish a line abreast of the 2nd Marines.

On July 27 and 28, encountering minimal opposition, the Marines advanced southward in a concerted effort, with riflemen in formation and skirmishers leading the way. The NTLF G-2 Lieutenant Colonel Thomas R. Yancey came to a conservative conclusion on July 27 that summarized not only that day's enemy situation but the entire operation's enemy situation as well: “Without saying so, he seemed to indicate the importance of all units conducting aggressive patrolling far to the front: To date there have been no indications that our front line units have encountered the 50th Infantry Regiment in force [since the first night's counterattacks]. It is believed that this unit is largely intact and it is known that they are well equipped and seasoned troops. They are capable of intervention at any time and may be expected to offer a strong opposition when encountered.” In the same report, Yancey noted that the "most likely enemy capability" was: "To fight a delaying action, withdrawing to, and organizing further defenses in, the high ground in the southeastern end of the island." Faced with this enigmatic enemy situation, General Schmidt formulated his scheme of maneuver and assigned his objectives on July 27 and 28 to facilitate an irregular "elbowing" advance. From the front lines held on the morning of July 27, Objective O-4 was near for the 4th Division, far for the 2nd Division; once Objective O-4 had been reached, the emphasis would shift--Objective O-5 would be near for the 2nd Division, far for the 4th Division. The Corps' attack on these two days, then, would find the 2nd Division carrying the ball on July 27, the 4th Division on the 28th. On the first day the 2nd Division would push forward at 07:30, the 4th Division at 10:00; on the second day the 4th Division would attack at 07:00, the 2nd Division at 10:00. Variations in these attack hours were consistent with plans to punch first with the left, then with the right. Principal advantage of this arrangement was that the bulk of the supporting fires could be allotted first to one division, then to the other. Not only did the 14th Corps Artillery mass its fires to support the main effort, but two 105mm howitzer battalions of the division executing the secondary attack were also made available to support the principal thrust in each case. 

Despite the gradual progress made by Cates’ Marines as they secured key positions on higher terrain, they successfully reached the O-4 Line by the end of the first day. Simultaneously, Watson’s Marines made significant strides on more favorable terrain, aided by tanks, covering a distance of 4000 yards to also reach the O-4 Line. The following day, amidst worsening weather conditions, the 2nd and 6th Marines quickly moved forward to secure the O-5 Line. The weather at Tinian had been unpleasant. Nearly every day featured rain squalls, gusty winds, and ominous clouds. And yet, for Jig-Day and three days following, the seas remained calm enough for reasonably convenient shore activities. The "three days of good weather" that Admiral Hill had considered vital had already expired. On the afternoon of 28 July the weather got worse--much worse. This condition resulted from the effects of a typhoon that built up west of the Marianas and sent its swells and winds against Tinian's west coast. The seas surrounding Tinian changed to a dirty gray-blue as the winds mounted and the waves boiled over one another and grew into larger, uglier masses. Surf roaring against the tiny WHITE Beaches and their rocky flanking shelves forced temporary suspension, at 1800 on 28 July, of all unloading over the beaches.

On the left flank, after intense artillery bombardment, Cates’ Marines swiftly advanced to the O-5 Line, then, supported by naval forces, resumed their march to secure Gurguan Point and its airfield, advancing to the intermediate O-6A Line, with Jones’ 23rd Marines covering a total distance of 7300 yards. On July 29, with half of the island under control, Schmidt directed his forces to push beyond the O-6 Line. Accordingly, the 24th and 25th Marines advanced with minimal resistance and reached the O-6 Line. Although Watson’s Marines faced initially light opposition, resistance intensified as they crossed the O-6 Line. The 6th Marines managed to secure advantageous positions just shy of the intermediate O-7A Line, while the 2nd Marines encountered opposition around the Masalog Point hill, halting their progress. The next day, Cates’ Marines resumed their southward advance, encountering resistance from Japanese machine-gunners and riflemen entrenched in coastal caves.

While tanks engaged the enemy, the 24th and 25th Marines surged forward, effectively securing Tinian Town and its airfield, and eventually reaching the O-7 Line. On the right flank, Watson’s Marines also pressed southward, with the 2nd Marines swiftly securing Masalog Hill and advancing along the coast despite heavy machine-gun fire, reaching O-7, while the 6th Marines advanced against sporadic resistance, also reaching O-7. Additionally, the 8th Marines took position at the center of the corps’ line. With the capture of four-fifths of the island and over 3000 Japanese either killed or captured, Schmidt’s Marines successfully pushed the remaining Japanese forces under Colonel Ogata’s command into an unnamed ridge between Lalo and Marpo Points at Tinian's southern end.

On July 31, following a massive artillery, air, and naval barrage, the Marines launched another assault to the south. The 24th Marines made significant progress along the coast and on less steep cliffs, securing the road to the ridge top. The 23rd Marines faced stiffer resistance but advanced with remarkable discipline, aided by tanks, gaining high ground. On the right flank, the 2nd and 6th Marines advanced against light machine-gun and mortar fire, reaching the intermediate O-8A Line. In the center, the 8th Marines encountered stronger resistance but managed to establish a foothold on the zigzag road to the top. By nightfall, a 600-yard gap emerged between the 8th and 23rd Marines, which the Japanese could exploit.

At 23:00, a banzai charge was repelled; however, at 01:00 on August 1, a 150-man force blocked Wallace’s rear road and launched an attack. A counterattack force was quickly organized, driving back the enemy. Ogata's final banzai charge at 05:15 was directed at the left of Company E but failed to breach Marine defenses. Both Colonel Wallace and the enemy commander probably still Colonel Ogata had realized the tactical implications of the cliff-line penetration. Both knew that it provided a route over which thousands of Marines could move into the Japanese rear. The two commanders' reactions were classic. As soon as one of his battalions grasped a toe hold, Wallace exploited the success by committing his reserve there. The enemy commander, as soon as he received word of the penetration, ordered a counterattack to throw the Marines off the cliff and restore the position. Each selected a tactically sound course of action. Only one could be successful.

At dawn, as the Japanese began to withdraw, Cates’ Marines continued the attack southward, with the 24th Marines reaching the O-8 Line at Lalo Point, and the 23rd Marines, after encountering a sheer cliff, retracing their steps to reach the cliffline in front of O-8. On the right flank, the 8th Marines swiftly advanced to O-8A and moved alongside the 6th Marines toward the cliffs overlooking the water. Finally, the 2nd Marines secured the high ground to prevent enemy escape along the east coast. Despite not reaching Marpo Point, organized resistance crumbled, leading Schmidt to declare Tinian secure at 18:55. 

Organized resistance had ceased. But on the early morning of August 2, an enemy force–estimated variously from 100 to 250–struck headlong into the command post of the 3rd Battalion, 6th Marines. Headquarters personnel, armed for the most part with carbines and pistols (although two automatic rifles were also used), considered the enemy group very well "organized." Initially, personnel of the aid station bore the brunt, but soon everyone in the headquarters group–clerks, communicators, corpsmen, assault engineers, mortarmen, and staff personnel–rallied behind their commanding officer, Lieutenant Colonel Easley, to defend themselves. The Japanese, carrying rifles, grenades, and machine guns, hurled themselves at the Marines with characteristic violence. As soon as one fell, another took his place. In search of substantial assistance, Captain John R. Steinstra, Headquarters Company commander, dashed to the nearby Company F, 6th Marines, acquired a medium tank and a rifle platoon, and led them back to the fight. Here was welcome reinforcement to the 3rd Battalion Headquarters Group, which had fought the enemy at close quarters for over two hours. The machine barged into the battle with guns blazing, and the tide turned. The battalion executive officer later stated that he considered the tank's appearance "vitally important" to the outcome. Those enemy soldiers who remained on their feet hastily departed the area. Daylight made results of the enemy effort visible: 119 Japanese bodies lay almost side by side in and around the 3rd Battalion command post. But the Marines had also taken casualties, one of the dead being Colonel Easley.

Nearly 400 Japanese perished in the week following the island's capture. From August 7 onward, the 8th Marines conducted cleanup operations on Tinian until January 1, 1945, eliminating an additional 542 Japanese at the cost of 38 killed and 125 wounded. Throughout the Battle of Tinian, a total of 5,745 Japanese were killed and 404 captured, while American losses amounted to 389 killed and 1,816 wounded. Similar to Saipan, around 4,000 civilians either took their own lives or were killed, but unlike Saipan, the majority—approximately 13,000 civilians—were interned. 

On April 15, 1944, there were 16,029 civilians residing on Tinian, out of which 1,658, primarily consisting of women, children, and the elderly, were relocated to Japan prior to the American invasion. Approximately 2,610 civilians lost their lives during the conflict. Journalist Robert Sherrod observed that most casualties occurred due to direct combat, as the Americans heavily utilized artillery, aerial bombardment, and naval attacks, often forcing civilians to seek refuge alongside soldiers. Some perished from diseases, thirst, or hunger. Tragically, some were also victims of atrocities committed by Japanese soldiers, such as being tied together and attacked with grenades. Instances of mass suicide occurred, notably at the "Suicide Cliff," where parents threw their children off the 120-foot precipice, and some civilians were pushed by Japanese soldiers. According to a captured Japanese soldier, a large group willingly perished in caves at the military's behest. By August 1, only 2,468 civilians had been documented, but within three days, this number surged to 8,491. The 2nd Marine Division established a camp for civilians at Ushi Point Airfield, while the 4th Marine Division set up another at the ruins of Churo village, which became a permanent settlement for all displaced civilians. By October 15, Camp Churo housed 10,926 civilians, comprising mainly Japanese and Korean nationals, with nearly half being children under 15 years old. The military administration struggled to provide adequate care due to shortages of relief supplies. Seabees oversaw the construction of temporary shelters initially, which were later replaced by more durable structures using salvaged materials. The internees also supplemented their provisions by salvaging food and cultivating gardens, with Seabees stepping in to provide improvised diesel stoves as firewood became scarce. In late 1945, Admiral Spruance, who succeeded Nimitz as CINCPOA, ordered the repatriation of all Japanese and Korean civilians, a process completed by late 1946.

Shifting focus to Guam, by July 25, General Geiger's Marines had secured two beachhead areas, with General Turnage's 3rd Marine Division advancing on the Fonte Plateau and General Shepherd's brigade sealing off the Orote Peninsula. Despite a fierce enemy counterattack on both fronts, Japanese resistance was effectively shattered. On July 26, while mop-up operations continued in General Turnage's sector, General Shepherd's Marines prepared to assault Orote. Following coordinated air, naval, and artillery bombardment, the 4th Marines launched their attack at 07:00, making swift progress. However, the 22nd Marines faced delays due to enemy artillery fire, necessitating the 4th Marines to extend their line to cover the exposed flank. Although the mangrove swamp hindered Colonel Schneider's Marines, they successfully cleared the area by afternoon, establishing contact with Colonel Shapley's forces at RJ 15, albeit with a slight eastern bend in their line. Meanwhile, Shepherd's units encountered mines, pillboxes, and bunkers, halting their advance by nightfall.

On the morning of July 27th, the offensive recommenced, yet the 4th Marines encountered difficulties in penetrating the robust enemy defenses without tank support. However, once the mines were cleared, the Shermans neutralized enemy positions, enabling the Marines to take control of the ridge ahead, although they couldn't advance further through the coconut grove. Meanwhile, the 22nd Marines, moving alongside Shapley’s 3rd Battalion along the inland road, faced delays due to the swamp. They encountered numerous obstacles including pillboxes, trenches, dugouts, and mines near the old Marine Barracks. Remarkably, the determined enemy abandoned their fortified line around 5:00 PM after a substantial bombardment, allowing Schneider’s Marines to swiftly advance ahead of the 4th Marines and seize strategic terrain by nightfall.

Following another intense bombardment, Shepherd’s forces prepared to attack on July 28th. Despite Japanese resistance, Schneider’s tank-supported advance reached the O-4 Line by 10:05 AM, creating a significant gap between Marine regiments. Nonetheless, the 22nd Marines persisted, fighting through the Marine Barracks and halting just 100 yards east of Sumay. Meanwhile, the 4th Marines faced slow progress and fierce opposition, stopping within 150 yards of the airfield. On June 29th, Shepherd launched a final assault after yet another heavy barrage, with both regiments successfully advancing the entire length of the airstrip against minimal resistance, establishing a defensive line 150 yards beyond the strip by 2:00 PM.

As the 22nd Marines redirected their efforts to clean up the devastated Sumay area, effectively eliminating the last remaining enemy stronghold the next day, the 4th Marines continued their advance northward, with a combined tank and infantry patrol reaching the tip of the peninsula. With the peninsula now under control, the American flag was once again raised over the ruins of the Marine Barracks.General Shepherd proclaimed “On this hallowed ground, you officers and men of the 1st Marine Brigade have avenged the loss of our comrades who were overcome by the numerically superior enemy three days after Pearl Harbor.” Orote saw over 2500 Japanese casualties, while Marine losses amounted to 115 killed, 721 wounded, and 38 missing.

Moving northward, following a failed Japanese counterattack, Takashina’s forces were preparing to retreat further into the island's interior, but the Americans were relentless in their pursuit. After regrouping and subjecting the enemy to heavy bombardment, battalions from Turnage’s regiments launched an assault towards the Fonte Plateau on July 27, albeit encountering stubborn resistance from the still-active enemy. Meanwhile, Colonel Butler’s 3rd Battalion successfully advanced to the D-2 Line on the same day. Following successful defense against several small-scale enemy counterattacks overnight, Turnage initiated the main push towards the objective beachhead line on the morning of July 28.

The depleted 3rd Marines, with Colonel Craig’s 2nd Battalion attached, launched another assault, encountering minimal resistance and securing the D-3 Line by afternoon, thereby completely controlling the abandoned Fonte area. Further bolstered by the 3rd Battalion, 307th Regiment, the 9th Marines made progress in their attack towards the strategic Chachao-Alutom-Tenjo ridgeline, marking a significant initial victory. Simultaneously, the 2nd Battalion, 307th Regiment, supported by units from the 305th Regiment, advanced towards Mount Tenjo from the south.

Under the protective cover of artillery neutralization fire, Craig’s 3rd Battalion effectively demolished a concrete emplacement at the center of Mount Chachao’s summit and swiftly secured the beachhead line adjacent to Mount Alutom. Simultaneously, General Bruce’s infantry units swiftly captured Mount Tenjo, with Craig’s 1st Battalion joining them by day's end. The 21st Marines faced minimal resistance, eliminating remaining enemy pockets around the radio towers and reaching the designated beachhead line. Thus, Turnage’s attack objectives were achieved, extending the beachhead line across the entire front. Additionally, the 21st Marines overran the 29th Division command post near the Fonte River, resulting in Takashina's demise as he supervised his retreating units. Consequently, General Obata assumed direct command of the remaining forces, adhering to Takashina’s plan for a strategic withdrawal to Mount Santa Rosa, with delaying positions established at Finegayan and Mount Barrigada. The Japanese launched eleven localized counterattacks against Turnage’s beachhead line on July 29, all of which were successfully repelled, inflicting 800 casualties on the attackers. The 3rd Marine Division then focused on consolidation and reorganization for the remainder of the day while rear areas were cleared of enemy presence. In the meantime, as the 306th Regiment secured the unoccupied Mounts Alifan and Taene, Bruce had also dispatched several patrols to the southern end of the island since July 27, successfully discovering by the end of July that the sector had been completely abandoned. 

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The allies chose to focus on the Vogelkop Peninsula over the Klamono oilfields, as MacArthur's focus shifted to the Mar-Sansapor region for airfield development. The Marines faced a horror show in Tinian but managed to secure her while progress was made on Guam. The Americans were clawing ever closer to the Japanese home islands.