Foreign relations 313 History 159 Politics and government 127 Thesis 113 Dissertations, Academic 100 China 71 Economic conditions 63 Relations 50 Foreign economic relations 41 Military policy 40 Economic policy 33 Communism 32 National security 31 Armed Forces 28 Biography 27 Social conditions 24 Civilization 20 Chinese 17 Congresses 17 Defenses 14 Military art and science 14 History, Military 13 Military relations 13 Strategic aspects 13 World politics 12 Heads of state 11 Social life and customs 11 United States 11 World War, 1939-1945 10 Commerce 9