World War, 1939-1945 42 History 14 Diplomatic history 11 Presidents 6 Prime ministers 6 Secret service 6 British 5 more ... Campaigns 5 Military campaigns 5 Aerial operations, British 4 Diplomatic relations 4 Foreign relations 4 History and criticism 4 Military operations, Aerial 4 Prisoners of war 4 Motion pictures and the war 3 War and motion pictures 3 Bomber Command 2 Bombing, Aerial 2 Britain, Battle of, Great Britain, 1940 2 Histoire 2 Military operations, Naval 2 Military scientists 2 Motion pictures 2 Naval operations 2 Naval operations, British 2 Operations research 2 Prisoners and prisons, Japanese 2 Social aspects 2 Soldiers 2 less ...