Military policy Foreign relations -- 8 War on terrorism, 2001- 8 War on Terrorism, 2001-2009 4 History -- 3 Imperialism 3 Iraq War, 2003- 3 more ... Persian Gulf War, 1991 3 Iraq War, 2003-2011 2 Political aspects 2 Politics and government -- 2 September 11 Terrorist Attacks, 2001 2 Terrorism -- 2 Armed forces 1 Balance of power 1 Capitalism -- 1 Christianity and other religions -- 1 Conservatism -- 1 Globalization -- 1 Homeland security 1 Influence 1 Information Warfare -- 1 Infrastructure -- 1 Intervention (International Law) 1 Islam 1 Mercenary troops -- 1 National characteristics, American 1 National security -- 1 Political messianism -- 1 Prevention 1 less ...