Thousands of poorly trained kamikaze pilots were asked to sacrifice their lives for Japan's collapsing war effort, but the letters they left behind reveal they weren't all eager volunteers.

See rare images of the Indigenous Inuit people who thrived in the Arctic regions of Canada, Alaska, and Greenland before they were forcibly relocated and their culture was all but erased.

The Soviet-Afghan War sparked the collapse of the Soviet Union, the rise of The Taliban and Al Qaeda, and a new era of war and terror.

From 1932 to 1972, the Tuskegee syphilis study allowed hundreds of African American men to die — all in the name of "science."

From 1939 to 1945, the scientists behind the Manhattan Project raced to develop the first nuclear weapon. The results would change history.

The Nazis suffered 80 percent of their casualties on World War II's Eastern Front, the deadliest theater in the history of war.

While the Nazi war machine ravaged Europe, the war in the Pacific brutalized the soldiers and civilians in World War II's often overlooked theater.

The Cuban Missile Crisis has been called the crowning victory of John F. Kennedy's presidency, but less favorable parts of the story have been kept under wraps for decades.

Today, Ernesto "Che" Guevara is an undying symbol of revolution. But was he a hero or a monster?

Not even the workers in Oak Ridge, Tennessee, had a clue as to what they were doing — which turned out to be refining the uranium for the atomic bombs dropped on Hiroshima and Nagasaki.