National security -- Foreign relations -- 14 Military policy 14 Defenses 6 Terrorism -- 6 World politics -- 6 Foreign relations 5 more ... Politics and government -- 5 Military relations -- 3 National security 3 Prevention. -- 3 Relations -- 3 Security, International 3 Armed forces 2 Civil defense -- 2 Decision making 2 Decision making -- 2 Defenses -- 2 Economic aspects 2 Government policy -- 2 History -- 2 Prevention -- 2 Sea-power -- 2 Security measures 2 Air power -- 1 Alliances -- 1 Appropriations and expenditures 1 Armed Forces 1 Armed Forces -- 1 Civil defense 1 less ...