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, ...

Key Points German U-boat strategies changed during World War II into "Wolf Packs," in which several submarines cooperated to ...

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 ...

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 ...