National security -- 24 Foreign relations -- 12 World politics -- 7 Military policy 4 Foreign relations 3 Military relations -- 3 National security 3 more ... Security, International 3 Terrorism -- 3 International relations 2 North Atlantic Treaty Organization 2 Prevention. -- 2 Weapons of mass destruction 2 1976- 1 20th century. -- 1 21st century. -- 1 Atomic bomb -- 1 Civil defense -- 1 Congresses 1 Congresses -- 1 Courts -- 1 Culture conflict 1 Defenses 1 Economic integration 1 Executive power -- 1 Forecasting -- 1 Government policy -- 1 History -- 1 History, Military -- 1 History. -- 1 less ...