Admiral Karl Doenitz was born on september 16, 1891 in Grnau bei Berlin, he was the leader (Befehlshaber der Unterseeboote) of the German U-boat campaign during World War II. Under his administration, the U-boat fleet fought the Battle of the Atlantic attempting to starve the United Kingdom of vital supply shipments from the United States. Although Winston Churchill remarked that it was this aspect of the war which most worried him, German U-boats succeeded in intercepting only a small fraction of supply to Britain.
During 1943 the war in the Atlantic turned against the Germans, but Doenitz continued to push for more U-boat construction and technological development. At the end of the war the Nazi submarine fleet was by far the most advanced in the world, and late war examples such as the Type XXI served as models for Soviet and American construction after the war.
