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.

MANITOWOC - A historic, decorated World War II submarine credited with sinking more than a dozen enemy ships and today ...

After nearly 80 years of mystery, the wreck of the HMS Trooper, a British submarine that disappeared during World War II, was discovered in the depths of the Aegean Sea near the island of Donoussa.

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.