World War II submarines were some of the most feared and effective weapons of the war. Operating mostly in stealth, these underwater vessels could strike without warning, often sinking massive enemy ...

World War II submarines usually had a distinct look, shaped more like boats than the conventional crafts. ... German submarines sank roughly 3,000 Allied vessels throughout the conflict, ...

German submarines sank 56 Allied ships in the region and damaged another 14, losing just one of their own in the process ...

German U-boat strategies changed during World War II into “Wolf Packs,” in which several submarines cooperated to sink enemy vessels. The Allied reaction to the German Wolf Packs was a ...

During World War II, German U-boats dealt significant damage to Allied shipping. The submarines used stealth and strategic tactics, augmented by intelligence gathered on merchant vessels, to ...

Researchers discovered the wreck of a World War II-era submarine off the coast of Norway this year. The HMS Thistle was a British sub that sank after being hit by a German vessel in 1940.