Commanders • Sir Percy Noble • Sir Max K. Horton Erich Raeder • Karl Dönitz Combats • Convoy SC-7 • Convoy PQ-17 • Mediterranean U-boat Campaign • Battle of the St. Lawrence • Stalingrad of the U-boat arm The boats • List of U-boats • List of successful U-boats Wolf packs • Endrass • Blücher • Hecht
