The U.S. Navy sunk many German U-boat submarines in World War II. ... The U-505 was the largest intelligence victory during the WWII battle for control of the Atlantic Ocean.

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. See photos of the inside.

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. See photos of the inside.

Slow Roll for German U-boat When operational, the U17 was powered by two 4-stroke MTU 600-horsepower diesel-electric engines, and had a cruising speed of 10 knots surfaced and 17 knots submerged.

The German U-boat U-853 sank the last U.S. merchant ship sunk in WWII. Historian Tim Gray speculates that German U-boats may have entered Narragansett Bay before the U.S. officially entered WWII.

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 ...

The German sub U-166 was among a fleet of 23 sent to the Atlantic Ocean in the spring of 1942 on a mission called Operation Drumbeat, the Nazi code name for submarine attacks on Allied shipping ...