The U-boat War in World War One (WWI) - Kaiserliche Marine (original) (raw)

Allied Warships

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The U-boat proved its worth as a serious fighting machine right at the beginning of WWI when Kptlt. Otto Weddigen in his small U-9 sank 3 British cruisers in less than hour on 22 Sep 1914. From then on the U-boats, although never committed fully until well into 1917, caused the Allies very serious problems and scored incredible victories while suffering their own losses as well.