Foreign relations -- Radicalism -- Christianity and other religions -- 1 Drug trade -- 1 Drug traffic -- 1 Imperialism 1 Influence 1 more ... Islam 1 Islamic fundamentalism 1 Jihad -- 1 Military policy 1 Military relations -- 1 National characteristics, American 1 Political messianism -- 1 Politics and government 1 Psychological aspects. -- 1 September 11 Terrorist Attacks, 2001 -- 1 Terrorism 1 War on Terrorism, 2001-2009 1 less ...