Arms control 1,030 Nuclear arms control 525 Foreign relations 305 Nuclear nonproliferation 276 Nuclear weapons 261 Verification 171 Diplomatic relations 158 Military policy 123 Chemical arms control 122 POLITICAL SCIENCE 120 Government policy 119 Disarmament 117 National security 115 Appropriations and expenditures 106 Nuclear disarmament 98 Biological arms control 96 International cooperation 94 Armed Forces 89 Export controls 86 International Relations 85 Law and legislation 85 Security, International 84 International relations 81 Politics and government 80 Weapons of mass destruction 77 Arms Control 69 Defenses 67 Arms transfers 64 Testing 64 History 63