Gunther Prien Attacks WW2 Kriegsmarine U-Boat Book German Submarine U-Boot Navy

Background Info about Gunther Prien After a year on the light cruiser Königsberg, he transferred in October 1935 to the U-boot force. In 1938 he was on U-26 under Kptlt. Hartmann patrolling in Spanish waters during the Civil War.

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