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Saudi Arabia Chief of the General Staff, Lt. Gen. Hussein-A-Al-Gobail and US Chairman of the Joint Chiefs of Staff Gen. Martin E. Dempsey(R) walk up the steps to the Pentagon past a military Honor Guard Cordon as he arrives at the Pentagon September 27, 2012, for private meetings in Washington, DC. AFP Photo/Paul J. Richards (Photo credit should read PAUL J. RICHARDS/AFP/GettyImages)

Saudi Arabia Chief of the General Staff, Lt. Gen. Hussein-A-Al-Gobail and US  Chairman of the Joint Chiefs of Staff Gen. Martin E. Dempsey(R) walk up the steps to the Pentagon past a military Honor Guard Cordon as he arrives at the Pentagon September 27, 2012, for private meetings in Washington, DC.    AFP Photo/Paul J. Richards        (Photo credit should read PAUL J. RICHARDS/AFP/GettyImages)