Foreign relations -- 4 Causes 2 Democracy -- 1 Government policy -- 1 Insurgency -- 1 Iraq War, 2003- -- 1 Iraq War, 2003-2011 -- 1 more ... Persian Gulf War, 1991 -- 1 Politics and government -- 1 Protest movements -- 1 Terrorism -- 1 Weapons of mass destruction -- 1 less ...