National security -- Foreign relations -- 11 World politics -- 7 Military policy 6 Terrorism -- 5 Foreign relations 4 Military relations -- 3 more ... Security, International 3 United States 3 International relations 2 North Atlantic Treaty Organization 2 Prevention 2 Prevention. -- 2 Security Management 2 1976- 1 20th century. -- 1 21st century. -- 1 Armed Forces -- 1 Atomic bomb -- 1 Civil defense -- 1 Congresses 1 Congresses -- 1 Courts -- 1 Defenses 1 Economic development 1 Executive power -- 1 Forecasting -- 1 Government policy -- 1 History -- 1 History, Military -- 1 less ...