Operation PX, or Operation Cherry Blossoms, would have been a devastating secret mission targeting Southern California had Japan been able to pull it off. The country looked to utilize biological ...

As WWII reaches its endgame, Allies and Soviets race to seize Berlin, uncovering Nazi secrets that reshape Europe and set the stage for the Cold War.

Operation Unthinkable was Winston Churchill’s secret plan at the end of World War II to launch a surprise offensive against the Soviet Union. This video examines the background of the plan, the forces ...

Japan's Nakajima Kikka was designed to carry either a single bomb or a 30mm cannon. Only one test flight was conducted before ...

A violin made in 1941 inside the Nazi concentration camp at Dachau was found to contain a hidden note from its maker, Polish Jewish prisoner Franciszek Kempa.

An East Tennessee woman shares papers marked "SECRET" with Ray Smith. Her father was a courier who took briefcases of U-235 to Chicago.

A violin made in 1941 inside the Nazi concentration camp at Dachau was found to contain a hidden note from its maker, Polish Jewish prisoner Franciszek Kempa.