Farewell Tribute in Honor of Secretary Gates at the Pentagon

Chairman of the Joint Chiefs of Staff Admiral Mike Mullen, President Barack Obama, and Secretary of Defense Robert M. Gates salute as troops parade past the reviewing stand during the Armed Forces Farewell Tribute in honor of Secretary Gates at the Pentagon in Arlington, Va., June 30, 2011. (Official White House Photo by Pete Souza)

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• June 2011: Photo of the Day