An Iraqi army officer talks to U.S. soldiers during an exchange of intelligence June 2 at an Iraqi army base near Al Guwair, south of Mosul, Iraq. Warrick Page/Getty Images hide caption

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An Iraqi soldier gives water to detainees after returning to base from a morning mission in Mosul, Iraq, June 5, 2010. Insurgent attacks in and around Mosul in northern Iraq continue as U.S. and Iraqi officials worry that al-Qaida in Iraq may be joining forces with other Sunni insurgent groups. Warrick Page/Getty Images hide caption

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An Iraqi man walks past sewage and rubbish in a squatter camp in Baghdad in 2008. Sabah Arar/AFP/Getty Images hide caption

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Security forces guard a street after a female suicide bomber blew herself up at the entrance to government offices in the western Iraqi city of Ramadi on July 4. Azhar Shallal/AFP/Getty Images hide caption

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