The whole "boat" designation comes straight from the German word for "undersea ... and were capable of taking on surface ships 20 times their size. Meanwhile, the U.S. Navy -- which had considered ...

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.

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 ...

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 ...

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 ...