Germany first started testing submarines in 1851, and by the end of WWI, had built some 334 U-boats (with another 226 under construction). They were vastly superior to U.S. subs.

Germany's U-505 submarine was the 1st warship captured by the US Navy in over a century and top secret during World War II.

All-electric submarine manufacturer U-Boat Worx has announced its latest series of submersibles called NEXUS, comprised of seven- and eight-person vessels (nine if some are children).

The U-505 submarine was a German U-boat that was captured during WWII and brought back to America. You can still see it to this day. Here's the story.

The U.S. Navy sunk many German U-boat submarines in World War II. But then they captured one, right before the D-Day invasion. Check out our latest YouTube videos.

Haunting Deep-Sea Footage Reveals U.S. Submarine Lost During WWI With cutting-edge deep-sea imaging technology, researchers captured high-definition images of a 100-year old submarine. By Natalia ...

A World War I-era German U-boat submarine has been found 100 years after it was wrecked in U.S. waters.. According to a report from National Geographic, the U-boat, which had the designation U-111 ...

Germany completed its first U-boat (the U-1) in 1905 and was the first nation to use a submarine during World War I. By comparison, the U.S. Navy commissioned its first sub (the U.S.S. Holland) in ...