National security -- 218 Foreign relations -- 57 National security 44 Politics and government -- 42 Military policy 34 Foreign relations 32 World politics -- 21 more ... Congresses 19 Congresses -- 19 Politics and government 18 Security, International 17 Defenses 16 Terrorism -- 14 Armed Forces 9 Security council 9 History 8 History -- 8 Prevention -- 8 Economic conditions -- 7 International cooperation 7 Strategic aspects 7 Government policy -- 6 International relations 6 Relations -- 6 Security Council -- 6 Developing countries -- 5 Economic integration 5 Foreign economic relations -- 5 Nuclear weapons -- 5 Regionalism -- 5 less ...