President Obama introduces (from left) Army Gen. Martin E. Dempsey, the next chairman of the Joint Chiefs of Staff; Adm. James A. Winnefeld, the new vice chairman of the Joint Chiefs; and Gen. Ray Odierno, the next Army chief of staff, during a Rose Garden ceremony at the White House in Washington on Monday, May 30, 2011. (AP Photo/Charles Dharapak)
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