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.

Few naval vessels have developed as enduring of a legacy as German U-Boats, but what does that name actually mean?

It's November 1943 and a German U-boat has been brutally damaged in a fight with British warships and is limping its way to port. But the sub's onboard batteries are impaired - which means it can ...

U-boat from which codebooks and valuable cryptographic materials were recovered before sinking, facilitating, in late 1942, the second major Allied breakthrough in reading German U-boat ...

On May 10th, 1945, all the German U-boats were told to surrender. The U249, which was the first German U-boat to arrive in UK waters, came into Weymouth Bay and surrendered. The commanding officer ...

Under the command of Lt. Cmdr. Maurice Jester, the Coast Guard cutter Icarus, shown here, sank a German U-boat off the North Carolina coast during WWII. (U.S. Coast Guard) After the Japanese ...

The German U-85 went down with all 46 hands aboard — the first German U-boat sunk by a U.S. Navy ship since America entered the conflict. Despite that success, the expanding Battle of the ...