Defenses National security -- 6 Armed Forces 3 Armed forces 3 Civil defense -- 3 Foreign relations -- 3 Military policy 3 more ... Military relations -- 3 Terrorism -- 3 Emergency management -- 2 Politics and government -- 2 Prevention -- 2 Weapons of mass destruction 2 Appropriations and expenditures 1 Armed Forces -- 1 Asymmetric warfare -- 1 Civil defense 1 Conflict management -- 1 Defenses -- 1 Disarmament 1 Disaster relief -- 1 Economic aspects 1 Economic conditions - 1989- 1 Foreign relations 1 Government policy -- 1 Harbors -- 1 Merchant marine -- 1 Military assistance, American -- 1 Military operations -- 1 National Security 1 less ...