Causes Foreign relations -- 2 Nationalism -- 2 Yugoslav war, 1991 -- 2 Anti-Americanism 1 Ethnic relations 1 Foreign public opinion 1 more ... Globalization -- 1 History 1 Influence 1 Iraq War, 2003-2011 -- 1 Islamic fundamentalism -- 1 National characteristics, American 1 Political aspects 1 September 11 Terrorist Attacks, 2001 -- 1 War on terrorism, 2001- 1 Weapons of mass destruction -- 1 less ...