Foreign U-Boats was the title for a special section created by the Nazi German Kriegsmarine that adopted 14 captured allied submarines into the U-Boat corps. Beginning in 1939 and lasting until the end of World War II in 1945, the Kriegsmarine modified a total of 14 captured allied submarines, then deployed them into combat with German crews. The special corps was not especially successful, as only nine allied ships were destroyed by Foreign U-Boats through the entire war, seven of those having been destroyed by German submarine U-A.[1]