World War, 1939-1945 595 History 344 Guerre mondiale, 1939-1945 222 Campaigns 128 Military campaigns 108 Histoire 62 Holocaust, Jewish (1939-1945) 59 more ... Campagnes et batailles 51 Jews 51 Underground movements 37 World War II (1939-1945) 35 Foreign relations 29 War 29 Military operations, Aerial 25 Diplomatic history 24 Generals 21 Military and naval history 21 Soldiers 21 Diplomatic relations 20 History of Russia. Soviet Union. Former Soviet Republics 19 Biography 18 Collaborationists 18 Ethnic relations 18 History, Military 18 Marshals 18 Persecutions 18 Aerial operations, Soviet 17 Soviet 16 Atrocities 15 Historiography 15 less ...