New Books in Diplomatic History

Conceived in 1950, the Colombo Plan for Co-operative Development in South and Southeast Asia was a unique experiment in foreign relations. Meeting annually across what we now know as the 'Indo-Pacific', talented administrators facilitated foreign aid provision, and promoted development fuelled state-making, internationalism and experimental regionalism across postwar Asia.  

In The Colombo Plan: Development Internationalism in Cold War Asia (Cambridge UP, 2025), Professor David Lowe argues that this new setting and dynamic international cast created an unusually productive diplomatic environment of development internationalism. The Colombo Plan did not escape power politics or Cold War divisions. However, it did run according to its own rhythm, and, unlike other experiments, it endured, continuing today in much reduced form. 

This interview was conducted by Dr. Miranda Melcher whose book focuses on post-conflict military integration, understanding treaty negotiation and implementation in civil war contexts, with qualitative analysis of the Angolan and Mozambican civil wars. You can find Miranda’s interviews on New Books with Miranda Melcher, wherever you get your podcasts.

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As the United Nations faces mounting geopolitical tensions, financial pressures, and new global challenges, what would meaningful reform actually look like? In this episode of International Horizons, RBI Fellow Peter Hoffman speaks with economist and Global Governance Forum Executive Director Augusto López-Claros about the UN’s record of achievements and shortcomings, the limits of past reforms, and the prospects for more fundamental institutional change. They discuss Security Council reform, the veto, collective security and disarmament, UN financing, climate governance, artificial intelligence, and the role of the next Secretary-General. Rather than simply making the existing system more efficient, López-Claros argues for rethinking the institutions and structures needed to address the global challenges of the 21st century. 

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President John F. Kennedy and Prime Minister Winston S. Churchill remain two of the most iconic figures of the twentieth century and Joel Nelson’s new book, Kennedy’s Only Hero: How JFK’s Obsession with Winston Churchill Defined His Presidency (Public Affairs, 2026), reveals the unexpected influence that Churchill had on Kennedy’s political career.

Winston Churchill remains one of the modern age’s most revered leaders. His life has been the subject of decades of mythmaking and scrutiny, and yet few know the powerful sway he had over another twentieth-century political icon―John F. Kennedy. Drawing on deep wells of unpublished archival material, Kennedy's Only Hero uncovers Kennedy’s obsession with Churchill, whose career, policies, writings, and even daily habits profoundly shaped the future president.

Kennedy discovered Churchill’s books as a teenager and by his early twenties had become an unswerving believer in his brilliance. Under Churchill’s influence, Kennedy rejected his own youthful isolationism and adopted the approach to national and international politics that propelled him to the presidency. Although they would not meet until late in their lives, Churchill’s influence on Kennedy’s campaign tactics, speeches, and worldview was overwhelming. Kennedy’s conviction in the power of peace through strength, his faith in summits, his understanding of the importance of rhetoric, and his deep commitment to service and global engagement―all came from Churchill.

Kennedy's Only Hero is an enlightening and deeply human story of an admiration and aspiration that changed the course of history.

Andrew O. Pace is a Senior Historian at SNA International in support of the Defense POW/MIA Accounting Agency (DPAA). Dr. Pace is not an employee of DPAA, he supports DPAA through a partnership. The views presented are those of the author and do not necessarily represent the views of DPAA, DoD or its components. 

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Historians have always known that the success of the Allied invasion of Normandy on D-Day in June 1944 depended on deceiving the Germans about where the invasion would take place. Jason Bell’s book, Operation Sparrow: The Incredible True Story of the Spies Who Tricked Hitler and Won the War (Hanover Square Press, 2026), tells the story of how three secret agents got themselves captured in Hungary to convince the Third Reich that the Allied invasion was taking place a thousand miles away.

March 16, 1944. Colonel Duke jumped into Hitler's Europe to lead Operation Sparrow, an OSS mission authorized by the president. Duke was forty-eight, twice the age of most paratroopers. He had played pro football for the New York Giants, flown fighter planes, and made his fortune in advertising before World War II made him a spy behind enemy lines.

Within days, the three Sparrows were captured in Hungary. It wasn’t a failure. It was the plan. Under brutal Gestapo interrogation, Duke and his men set out to convince the Third Reich that the D-Day invasion would strike the Balkans, far from France.

Survive torture while making a lie sound true—it was either genius or suicidal. Probably both.

If the ruse held, Axis divisions would defend the wrong coast. If it broke, three Americans would be shot as spies—and the Wehrmacht would be poised to win D-Day.

Of the tens of millions who fought in the war, the Sparrows were the only ones whose mission required capture by the Nazis. Drawing on recently declassified OSS files, Jason Bell brings their story to life.

Operation Sparrow reveals:

• The American heroes who turned their own capture into a weapon
• The Gestapo interrogation rooms that became a secret Allied battlefield
• The top-secret deception that kept Hitler's divisions away from Normandy

Meticulously researched and told at the pace of a thriller, Operation Sparrow is narrative history for readers of Operation Mincemeat and Unbroken.

Andrew O. Pace is a Senior Historian at SNA International in support of the Defense POW/MIA Accounting Agency (DPAA). Dr. Pace is not an employee of DPAA, he supports DPAA through a partnership. The views presented are those of the author and do not necessarily represent the views of DPAA, DoW or its components. 

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Great Power Diplomacy. The Skill of Statecraft from Attila the Hun to Kissinger (Princeton UP, 2025) is a captivating history of diplomacy—and an urgent reminder of why we need to revive its lost arts to survive in a dangerous era of great power competition. From the beginning of time, human societies have found themselves confronted by enemies too numerous or ferocious to defeat solely by force of arms. In these dramatic moments, wise leaders have turned to diplomacy to rearrange the gameboard in their favor and stymie seemingly unstoppable foes. In Great Power Diplomacy, American historian and diplomat A. Wess Mitchell recounts the forgotten story of how history’s most legendary empires have used diplomacy as a tool of grand strategy to outwit, outmaneuver, and outlast militarily superior opponents. Through fifteen centuries of history, Great Power Diplomacy recreates the perilous junctures, colorful personalities, and intricate statecraft that led to some of history’s most stunning diplomatic achievements—and greatest disasters. The protagonists include giants like Richelieu, Metternich, Bismarck, and Kissinger, but also a lesser-known cast of scoundrels, eunuchs, drunkards, and fools. At every turn, fortune favored those great powers with the foresight and dexterity to build winning alliances, splinter enemy coalitions, and, when necessary, make peace with their bitterest foes. Diplomacy of this kind has become a lost art in recent years as Western elites embraced the illusion that globalization and the spread of democracy would create a borderless world where nations would live in harmony and war would be abolished from the human story. But, as Great Power Diplomacy reveals, we will need to rediscover the secrets of skillful statecraft as the world enters an unstable new era in which continent-sized great powers compete for territory, resources, and prestige. By recalling diplomacy’s rich past, we can equip ourselves for a more dangerous future.

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From the dawn of the modern era to the end of the Cold War, global history was defined by rivalries between Great Powers. In the West, this meant the struggle for supremacy in Europe and the Americas, while in the East, it encompassed those vying for control over the successor states to Genghis Khan’s empire. Between 1989 and the year 2000, Great Power rivalry temporarily gave way to globalization, with liberal democracy on the march and national chauvinism seemingly in retreat. But events of the past decade have made one thing abundantly clear: The Great Powers are back. 

In The Return of the Great Powers (Basic Books, 2026), renowned historian Brendan Simms offers a new history of the rise, fall, and return of the Great Powers in our time.  He shows that over the past ten years or so, the major global actors have already resumed making decisions based on geopolitical rather than global economic considerations.

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When powerful states go to war, why do they bother asking permission? In Strategies for Approval: Building Support for Military Intervention at the UN Security Council (Yale University Press, 2025), Stefano Recchia argues that the answer reveals something surprising about how power actually works. 

Drawing on hundreds of declassified documents and more than fifty interviews with senior diplomats, among them Andrei Kozyrev, Brent Scowcroft, and Colin Powell, Recchia shows that money and muscle are rarely enough to move a reluctant Security Council. States that succeed also reassure: they accept time limits, geographic restrictions, and multilateral oversight written directly into the resolutions they seek.

Our conversation traces that logic through France's controversial 1994 intervention in Rwanda, the six-week "pause for peace" the United States conceded to Gorbachev and Mitterrand before the First Gulf War, and the very different failure of 2003. Recchia also discusses what his interviews revealed about the real aims behind the 2011 intervention in Libya.

The more powerful a state becomes, this book shows, the more its power frightens others, and the more it must bind itself to get anything done.

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China’s Date Debate: How Manchurian Scholars Rewrote World War II (U Michigan Press, 2026) by Dr. Emily Matson is an in-depth investigation of the Chinese Communist Party’s remapping of China’s World War II timeline from eight years (1937–1945) to fourteen years (1931–1945). Instead of the previously accepted starting date of the Marco Polo Bridge Incident on July 7, 1937, the Chinese Communist Party defined the war’s starting date as the Mukden Incident on September 18, 1931, which triggered the Japanese Kwantung Army’s invasion of Manchuria. Since the 1980s, scholars from Manchuria have demanded a fourteen-year war timeline to encompass the invasion of their homeland. By the 1990s, other scholars took notice and started to counter with claims that the eight-year timeline was the more accurate. Subsequently, a fierce “date debate” emerged between the two sides that was only resolved by the 2017 proclamation from the Ministry of Education.

Dr. Matson demonstrates that the decision to set China’s World War II timeline at fourteen years was not merely a top-down decision, but was influenced by decades of Manchurian scholarship on the war. China’s Date Debate recenters Manchuria as a region of critical importance for China’s national identity today and the implications of this “date debate” on the Chinese Communist Party’s domestic legitimacy and international image.

This interview was conducted by Dr. Miranda Melcher whose book focuses on post-conflict military integration, understanding treaty negotiation and implementation in civil war contexts, with qualitative analysis of the Angolan and Mozambican civil wars. You can find Miranda’s interviews on New Books with Miranda Melcher, wherever you get your podcasts.

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Blue Sea, Black Gold, Red Banner: The South Caucasus and Scandinavia, 1880s–1920s

Tom

This interview was conducted by Dr. Miranda Melcher whose book

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As Foreign Secretary in Neville Chamberlain's Cabinet in 1937, Eden

In Eden's Alternative to Appeasement: The Anglo-American Strategy that Might Have Been, 1937–38 (Tithebarn Press, 2026), historian

With

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