Photo Credit: Air Force Tech. Sgt. Jacob N. Bailey
Gen. Martin E. Dempsey, left, and Defense Secretary Leon E. Panetta, right, observe the playing of the national anthem during the Chairman of the Joint Chiefs of Staff change of responsibility ceremony on Joint Base Myer-Henderson Hall, Va., Sept. 30, 2011. Navy Adm. Mike Mullen was succeeded by Dempsey, who became the 18th chairman of the Joint Chiefs of Staff., during the ceremony.