The National Museum of African American History and Culture is removing a rare slave ship timber from its Slavery and Freedom exhibit and sending it back to South Africa.

The German Submarine branch of the Kriegsmarine became one of the most fear-inducing components of the German military apparatus during the Second World War. Initially, Adolf Hitler preferred to ...

In September 1914, a single German U-boat ventured into the North Sea. Lieutenant Otto Weddigen’s U-9 slipped past patrols and found itself within range of a British cruiser squadron. What followed ...

The U.S. Navy has reached a Cold War-era milestone in the Arctic, deploying two Virginia-class submarines beneath the polar ice cap for the 100th time since World War II.