Politics and government 174 Foreign relations 97 Economic conditions 67 World politics 67 History 58 Economic policy 31 Social conditions 30 National security 19 Cold War 18 Congresses 16 Military policy 16 International relations 13 Economic history 12 United States 12 Regionalism 10 Asia 8 Foreign economic relations 7 Southeast Asia 7 Vietnam War, 1961-1975 7 Biography 6 Economic integration 6 Forecasting 6 Asia, Southeastern 5 Europe 5 Influence 5 Relations 5 Addresses, essays, lectures 4 Commerce 4 Economic assistance 4 Economic forecasting 4