A Nautical Knife Fight. In one of the more dramatic duels at sea during the Battle of the Atlantic, the U.S. Coast Guard cutter Spencer attacked, boarded, and sank a convoy-stalking U-boat. By Chief Petty Officer William A. Bleyer, U.S. Coast Guard | April 2024 Naval History Magazine
17 April 1943: Guns ablaze, the USCGC Spencer bears down on U-175 after having blown the U-boat to the surface with depth charges.