Diplomatic relations 62 Foreign relations 62 National security 42 Armed Forces 31 Politics and government 26 Military relations 20 Defenses 19 Military policy 19 Security, International 11 Military planning 8 Foreign economic relations 7 International economic relations 7 Nuclear arms control 7 Terrorism 7 Information warfare 6 Nuclear nonproliferation 6 Political stability 6 Weapons of mass destruction 6 Nuclear disarmament 5 Nuclear weapons 5 Prevention 5 Relations 5 Deterrence (Strategy) 4 International relations 4 Appropriations and expenditures 3 Ballistic missile defenses 3 Biological weapons 3 Drug control 3 Economic integration 3 Military art and science 3