Military policy World politics National security 9 United States 8 Armed Forces 7 Foreign relations 7 Nuclear weapons 7 Strategy 7 Periodicals 6 History 5 Security, International 5 Defenses 4 Military art and science 4 Military relations 4 Nuclear nonproliferation 3 Sea-power 3 War on terrorism, 2001- 3 Weapons of mass destruction 3 Europe 2 Military doctrine 2 Military history, Modern 2 Military planning 2 Nuclear warfare 2 Politics and government 2 Special forces (Military science) 2 War 2 1945- 1 20th century 1 21st century 1 Asymmetric warfare 1