Foreign relations 2,116 Politics and government 328 English language 280 History 236 Thesis 231 Foreign economic relations 217 Dissertations, Academic 185 Textbooks for foreign speakers 183 United States 149 World politics 138 National security 113 Military policy 112 Problems, exercises, etc 106 Economic conditions 97 Study and teaching 97 Foreign speakers 77 Economic policy 74 International relations 72 Congresses 60 Security, International 58 Grammar 57 Foreign relation 54 China 46 Terrorism 42 Cold War 41 Relations 41 Malaysia 39 Soviet Union 39 Armed Forces 38 World War, 1939-1945 38