Influence Islam September 11 Terrorist Attacks, 2001 -- 3 Islam -- 2 Religious aspects -- 2 Terrorism -- 2 Christianity and other religions -- 1 more ... Foreign relations -- 1 History 1 History -- 1 Imperialism 1 Islam and politics -- 1 Islam and state -- 1 Military policy 1 National characteristics, American 1 Political messianism -- 1 Psychological aspects. -- 1 Radicalism -- 1 Relations -- 1 Religion 1 Terrorism 1 War on Terrorism, 2001-2009 1 Zoroastrianism 1 Zoroastrianism -- 1 less ...