Example image of eyePlorer eyePlorer map for 'U-boat': German language Germany Submarine World War I World War II Blockade Commerce raiding British Empire United Kingdom United States Austria–Hungary August Howaldt Brandtaucher Engineer Invention Kiel Wilhelm Bauer Thorsten Nordenfelt 7th Cruiser Squadron (United Kingdom) HMS Aboukir (1900) HMS Cressy (1899) HMS Hogue (1900) SM U-9 Prize rules SS Glitra RMS Lusitania SM U-20 Torpedo Alfred Gwynne Vanderbilt I Charles Frohman Vanderbilt family Allies of World War I Diplomacy Battle of Jutland Grand Fleet High Seas Fleet Reinhard Scheer Unrestricted submarine warfare U-boat Campaign (World War I) Materiel German submarine U-3 German Type Mittel U submarine German Type U 139 submarine German Type U 151 submarine German Type U 31 submarine German Type U 66 submarine German Type UB I submarine German Type UB II submarine German Type UB III submarine German Type UC I submarine
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