World War, 1939-1945 31 History 29 Foreign relations 22 Campaigns 13 Causes 13 Politics and government 11 World politics 11 more ... Diplomatic history 7 Pearl Harbor (Hawaii), Attack on, 1941 7 Diplomatic relations 6 Relations extérieures 6 Guerre mondiale, 1939-1945 5 National socialism 5 Britain, Battle of, Great Britain, 1940 4 Fascism 4 Sino-Japanese War, 1937-1945 4 Stalingrad, Battle of, Volgograd, Russia, 1942-1943 4 Außenpolitik 3 Genocide 3 War 3 Aerial operations 2 Atomic bomb 2 Buitenlandse politiek 2 Campagnes et batailles 2 Histoire 2 Histoire diplomatique 2 Military campaigns 2 Motion pictures and the war 2 Motion pictures in propaganda 2 Mukden Incident, China, 1931 2 less ...