Causes World War, 1939-1945 History 24 Foreign relations 20 Diplomatic history 11 Politics and government 11 World War, 1914-1918 6 more ... Military policy 5 Armed Forces 4 Fascism 4 Holocaust, Jewish (1939-1945) 4 National socialism 4 Pearl Harbor (Hawaii), Attack on, 1941 4 Alliances 3 World politics 3 American poetry 2 Balance of power 2 Germans 2 History and criticism 2 History, Modern 2 Influence 2 International relations 2 Jews 2 Military history, Modern 2 Military leadership 2 Participation, German 2 Political poetry, American 2 Politics and literature 2 Rescue 2 Strategic aspects 2 less ...