National security -- Foreign relations -- 17 Military policy 15 Foreign relations 7 Defenses 6 Terrorism -- 6 World politics -- 6 more ... Politics and government -- 5 Relations -- 4 Security, International 4 Decision making 3 Defenses -- 3 Economic aspects 3 History -- 3 Military relations -- 3 National security 3 Prevention. -- 3 Armed forces 2 Civil defense -- 2 Decision making -- 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 less ...