The HMS M1 was constructed during WW1 but was never used in combat due to fears the Germans would copy its revolutionary design.

A World War I submarine wreck off the coast of Southern California has been captured for the first time in new video and images made possible using advanced deep-sea imaging technology. The sunken U.S ...

After more than 100 years, we have the first actual image of the wreck of a sunken U.S. Navy submarine from World War I. A recent expedition to survey it and other lost military hardware has ...

As World War I came to an end, Germany was forced to surrender its fleet to the Allies, including the massive U-118 submarine. The French took possession of the vessel and set sail for her new home, ...

On June 4, 1944, the US Navy captured its first German submarine. Now it's displayed at Chicago's Griffin Museum of Science and Industry.

A group of divers have explored the wreckage of a WW1-era Royal Navy submarine – 100 years after it sank. Dominic Robinson, 54, and a team of 10 dived 74m down to check out the century-old HMS M1 sub ...