A diary handed down through three generations has helped find the wreck of a German U-boat sunk by a secret Royal Navy Q-ship ...

or U-boats, sunk, scuttled, captured, or otherwise lost to German forces during World War II. Here, naval historian Timothy Mulligan describes 25 of the most historically significant U-boats.

A missing World War Two U-boat ... as Nazi Germany was overrun by the Allies in 1945. U-3523 was sunk by a British bomber on 6 May 1945 with the loss of all 58 crewmembers. Failure to find ...

UC-97 became probably the only German submarine sunk within the continental United States. One of five U-boats turned over to the U.S. Navy for post-war study, she toured the Great Lakes as part ...

Two days later, the German U-boat U-552 left the French port of St ... US merchant ships had already been sunk in the Atlantic, and in mid-October, another US destroyer was hit by a torpedo ...