During World War II, the German Navy became a much feared adversary both on and beyond the high seas, with its marauding U-boat "wolf-packs" coming close to defeating Britain in the Battle of the Atlantic. Here Jak Mallmann Showell examines the different roles of the Fleet, and its organization and training activities during ther war years. Incidents and operations are also described, together with technical data for ships, U-boats and their weaponry. A useful guide to German Navy uniforms and insignia is included, together with details of rank structure and specialist trades. This authoritative study of the formidable Kriegsmarine in World War II should appeal to anyone with an interest in the armed forces of the Third Reich.