Foreign relations -- 2 Military policy Christianity and other religions -- 1 History -- 1 Imperialism 1 Influence 1 Iraq War, 2003- 1 more ... Islam 1 National characteristics, American 1 Persian Gulf War, 1991 1 Political messianism -- 1 Psychological aspects. -- 1 Radicalism -- 1 September 11 Terrorist Attacks, 2001 -- 1 War on Terrorism, 2001-2009 1 War on terrorism, 2001- 1 less ...