Foreign relations 27 World War, 1939-1945 15 Campaigns 10 History 9 Foreign economic relations 6 Relations 6 Biography 5 Atomic bomb 4 Dissertations, Academic 3 Economic conditions 3 Economic policy 3 Japan 3 Military policy 3 Personal narratives, American 3 Thesis 3 United States 3 World war, 1939-1945 3 Causes 2 Congresses 2 Industrial management 2 International economic relations 2 Military intelligence 2 Politics and government 2 20th century 1 Armed Forces 1 Artillery 1 Artillery operations, American 1 Artillerymen 1 Atomic bomb victims 1 Balance of power 1