Over eight decades ago, the US Navy made the historic capture of a Nazi U-boat during World War II. A treasure trove of vital German intelligence, the submarine's capture was top-secret. See inside ...

To avoid capture, the Germans attempted to sink the U-boat with time bombs throughout the submarine and opened a sea strainer that caused water to rush inside the hull. US Navy sailors who boarded ...

SEOUL--North Korea has launched its first operational “tactical nuclear attack submarine” and assigned it to the fleet that patrols the waters between the Korean peninsula and Japan ...