Foreign relations Politics and government 1,558 Diplomatic relations 1,201 Human rights 499 Law and legislation 271 Economic assistance, American 269 Democracy 248 Economic sanctions, American 203 National security 190 Nuclear nonproliferation 161 Government policy 151 Military policy 142 Terrorism 132 Military assistance, American 131 History 125 Armed Forces 117 Appropriations and expenditures 111 International cooperation 106 Economic conditions 103 Drug control 100 Foreign economic relations 91 Nuclear weapons 91 Prevention 80 Nuclear arms control 79 Elections 71 Peace 67 Democratization 64 Security, International 59 Vietnam War, 1961-1975 59 Missing in action 56