Politics and government 1,047 Foreign relations 889 History 657 International relations 607 World politics 311 Cold War 220 Diplomatic relations 179 更多 ... Presidents 169 Social conditions 133 Political aspects 129 Economic conditions 111 Conservatism 90 Economic policy 86 Political culture 83 Military policy 67 Legislators 65 Communism 58 Influence 55 Social aspects 54 African Americans 50 Vietnam War, 1961-1975 48 Public opinion 46 Liberalism 44 Relations 43 Political activity 41 Political parties 41 National security 40 Intellectual life 39 International economic relations 39 Race relations 39 少 ...