Title: U-BOATS ATTACK!
Subjects: Campaigns, Submarine, Submarines (Ships), World War, 1939-1945, Naval operations, German Naval operations, History, Great britain, royal navy, history, Germany, kriegsmarine, World war, 1939-1945, campaigns, atlantic ocean, World war, 1939-1945, naval operations, british, World war, 1939-1945, naval operations, german
Places: Atlantic Ocean, Germany
Time periods: 20th century