Foreign relations 13 World War, 1939-1945 9 History 7 Politics and government 7 International relations 6 Economic conditions 5 Campaigns 4 more ... Causes 4 Diplomatic relations 4 International economic relations 4 Economic policy 3 Foreign economic relations 3 Imperialism 3 Militarism 3 Social aspects 3 Social conditions 3 Diplomatic history 2 Economic integration 2 Fascism 2 Free trade 2 Geopolitics 2 Military campaigns 2 Pearl Harbor (Hawaii), Attack on, 1941 2 Strategic aspects 2 Strategic aspects of individual places 2 War 2 Aerial operations, American 1 Armed forces 1 Atrocities 1 Commercial policy 1 less ...