In this video image, President Obama speaks to the nation from the Oval Office about the end of the U.S. combat role in Iraq. APTN hide caption

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An Iraqi man stretches his eye as a U.S. soldier scans his iris using a biometrics digital system camera during an enlistment program session to join the Sahwa group in Mahmudiyah, in 2008.  Mauricio Lima/AFP/Getty Images hide caption

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President Obama greeted Iraq war veterans on Tuesday at Fort Bliss, Tex. Analysts say Obama must figure out how to take credit for drawing down troop levels in Iraq while acknowledging that parts of the mission haven't been accomplished. Tim Sloan/AFP/Getty Images hide caption

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