Politics and government -- 6 Foreign relations -- 3 Terrorism -- 3 War on Terrorism, 2001-2009 3 Civil defense 1 Civil defense -- 1 Civil rights -- 1 more ... Civil-military relations -- 1 Civilization, Modern -- 1 Combatants and noncombatants (International Law) 1 Defenses 1 Detention of persons -- 1 Environmental policy -- 1 Executive power -- 1 Foreign economic relations -- 1 Globalization 1 Government policy -- 1 Harbors -- 1 Imperialism 1 Intervention (International Law) 1 Legal status, laws, etc -- 1 Merchant marine -- 1 Militarism -- 1 Military policy 1 Military-industrial complex -- 1 National security 1 National security -- 1 Official secrets -- 1 Prevention 1 Prevention -- 1 less ...