National security -- Foreign relations -- 39 Military policy 30 Foreign relations 25 Terrorism -- 23 Politics and government -- 21 Defenses 18 more ... World politics -- 17 Congresses -- 14 Security, International 13 Congresses 12 Prevention -- 10 Strategic aspects 10 Politics and government 9 History -- 8 Prevention. -- 8 Government policy -- 7 International cooperation 7 National security 7 Regionalism -- 6 Security, International -- 6 Armed Forces 5 Economic aspects 5 Economic integration 5 International relations 5 Relations -- 5 Civil defense -- 4 Civil rights -- 4 Decision making 4 Defenses -- 4 less ...