New York Times journalist and former Marine infantry officer C.J. Chivers shows the realities of war through the lens of six combatants.

The 1984 Operation Lionheart involved 131,565 British and allied troops. The Russians claim almost 300,000 personnel will be participating in Vostok-18 beginning on Sept. 11.

The Demilitarized Zone between North and South Korea is both a potential conflict zone and a tourist destination. An official South Korean tourism site notes more than a million people visit the DMZ every year.

In South Korea, when tensions flare in the north, business picks up for those who supply preppers.

Yemenis mourned the deaths of about 30 children following a Thursday air strike on a busload of school boys.

Haspel oversaw a CIA "black site" in Thailand in 2002.

Shigeaki Mori was 8 when the atomic bomb was dropped on Hiroshima. He survived and committed himself to uncovering the names of all those who died — including 12 American POWs.

Men between 18 and 42 are forced to serve in Syria’s army. After years of living in exile, some are willing to return to be home again.

A new report confirming prisoner abuses in southern Yemen is amping up concern in Washington, DC. "It's just going to further radicalize the Yemeni people," Senator Chris Murphy says.

There's a serious word that's been thrown around a lot since Donald Trump held a joint news conference with Russian President Vladimir Putin in Helsinki on Monday. It's the word "treason." The thing is, Trump is not guilty of treason as the US Constitution defines the term.