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 ...

A team of researchers has discovered the wreck of the famous US Navy submarine USS Harder, SS 257, considered to have played ...

A British World War II submarine that disappeared with 64 on board during a secret mission in 1943 has been found off Greece.