Defenses National security -- 12 Military policy 9 Armed Forces 8 Foreign relations -- 5 Armed forces 3 Arms control -- 3 more ... Foreign relations 3 Politics and government -- 3 Strategic aspects 3 World politics -- 3 Armed Forces -- 2 Arms control 2 Prevention -- 2 Security, International 2 Terrorism -- 2 Weapons of mass destruction 2 Air power -- 1 Appropriations and expenditures 1 Asia, Southeastern -- 1 Asymmetric warfare -- 1 Civil defense -- 1 Conflict management -- 1 Defenses -- 1 Deterrence (Strategy) 1 Economic aspects 1 Economic conditions - 1989- 1 Emergency management -- 1 Europe 1 European Union 1 less ...