Foreign relations 300 History 154 Politics and government 120 Thesis 103 Dissertations, Academic 91 China 69 Economic conditions 60 Relations 49 Military policy 42 Foreign economic relations 40 Economic policy 32 National security 32 Communism 31 Armed Forces 28 Biography 26 Social conditions 22 Civilization 20 Congresses 18 Chinese 17 Defenses 14 History, Military 13 Strategic aspects 13 Military art and science 12 Military relations 12 World politics 12 United States 11 Heads of state 10 Social life and customs 10 World War, 1939-1945 10 Commerce 9