BAGHDAD - SEPTEMBER 16:  Outgoing commander Gen. David Petraeus hands over the Multi-National Force Iraq flag to U.S. Defense Secretary Robert Gates as Gen. Ray Odierno looks on during a Change of Command ceremony at Camp Victory on September 16, 2008 in Baghdad, Iraq. David Petraeus, the American general who presided during 'The Surge', the increase in American military presence believed to have been critical to reduced violence in the beleaguered country, handed over his command today to Gen. Ray Odierno. Getty Images logo Getty Images 41 months ago

BAGHDAD - SEPTEMBER 16: Outgoing commander Gen. David Petraeus hands over the Multi-National Force Iraq flag to U.S. Defense Secretary Robert Gates as Gen. Ray Odierno looks on during a Change of Command ceremony at Camp Victory on September 16, 2008 in Baghdad, Iraq. David Petraeus, the American general who presided during 'The Surge', the increase in American military presence believed to have been critical to reduced violence in the beleaguered country, handed over his command today to Gen. Ray Odierno.