Naval operations History 300 World War, 1939-1945 227 Submarine 171 Military operations, Naval 127 World War, 1914-1918 114 Campaigns 96 more ... Naval operations, German 95 Sea control 91 History, Naval 73 Guerre mondiale, 1939-1945 67 Submarines (Ships) 58 Histoire 56 Opérations sous-marines 45 German 39 Naval convoys 39 Military campaigns 37 Opérations navales 31 Shipwrecks 30 Naval operations, American 28 Guerre mondiale, 1914-1918 27 HISTORY 26 Campagnes et batailles 23 Armed Forces 22 Opérations navales allemandes 20 Submarine forces 20 Aerial operations 19 Merchant marine 18 Naval history, Modern 17 Submarine warfare 17 less ...