BAGHDAD, IRAQ, JUNE 30: Iraqi army soldiers are seen on top of their tank waving as they celebrate the U.S withdrawal from Iraqi cities on June 30, 2009 in Baghdad, Iraq. Iraq celebrated as it declared June 30th 'National Sovereignty Day' after U.S. troops handed over control of Iraq's cities to their domestic security forces.  (Photo by Muhannad Fala'ah/Getty Images)