Map of Lost U-Boats
by Timothy Mulligan
frameless version

U-869, the submarine profiled in the NOVA program "Hitler's Lost Sub," was just one of the more than 1,100 Unterseeboote, 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. Click on the map labels and plunge into the fascinating and often tragic histories of some of Germany's most notorious "sea wolves."

KzS = Kapitän zur See (Captain)
KK = Korvettenkapitän (Lt. Commander)
KL = Kapitänleutnant (Lieutenant)
OL = Oberleutnant zur See (Lieutenant, j.g.)
Lt.z.S.d.R. = Leutnant zur See der Reserve (Ensign in the Reserves)
Admiral Karl Dönitz was head of Germany's U-boat service
A snorkel is a tube that houses air intake and exhaust pipes for use with a submarine's diesel engine while the sub is submerged

Timothy Mulligan is a German naval historian and archivist at the National Archives and Records Administration. His most recent book is Neither Sharks Nor Wolves: The Men of Nazi Germany's U-Boat Arm 1939-1945 (Naval Institute Press, 1999).