President Barack Obama introduces his choice for next Chairman of the Joint Chiefs of Staff, Army Gen. Martin Dempsey, third from right, the next vice chairman of the Joint Chiefs of Staff Adm. James Winnefeld and Gen. Ray Odierno, right, to be Army Chief of Staff during a Rose Garden announcement at the White House in Washington, Monday, May 30, 2011. Also pictured are National Security Adviser Tom Donilon, far left, and Defense Secretary Robert Gates, second left. (AP Photo/Charles Dharapak)
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