Influence September 11 Terrorist Attacks, 2001 -- 5 East and West 2 Islam -- 2 Muslims -- 2 Christianity and other religions -- 1 Foreign relations -- 1 more ... Imperialism 1 Islam 1 Military policy 1 National characteristics, American 1 Persian Gulf War, 1991 1 Political messianism -- 1 Psychological aspects. -- 1 Radicalism -- 1 Relations -- 1 Terrorism and mass media 1 Terrorism and mass media -- 1 Terrorism in mass media 1 War on Terrorism, 2001-2009 1 less ...