Military policy Foreign relations -- 45 World politics -- 20 National security -- 19 History -- 12 Armed Forces -- 11 Politics and government -- 10 more ... Armed forces 8 Intervention (International Law) 8 Appropriations and expenditures 7 Nuclear weapons -- 7 Security, International 7 War on terrorism, 2001- 7 Military relations -- 6 Terrorism -- 6 Defenses 5 Deterrence (Strategy) 5 Arms control 4 Government policy -- 4 Imperialism 4 Nuclear warfare 4 Nuclear weapons 4 Persian Gulf War, 1991 4 Philosophy 4 War on Terrorism, 2001-2009 4 Foreign relations 3 Influence 3 International cooperation 3 Iraq War, 2003- 3 Nuclear arms control 3 less ...