Marine Corps Gen. Joseph F. Dunford Jr., chairman of the Joint Chiefs of Staff, presides over the Change of Presidency Ceremony for National Defense University at the institution's main campus on Fort McNair, Sept. 25, 2017. During the ceremony Marine Corps Maj. Gen. Frederick M. Padilla relinquished command to Navy Vice Adm. Frederick J. Roegge. (DOD photo by Navy Petty Officer 1st Class Dominique A. Pineiro)

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Keywords: ., 19, chairman, chiefs, cjcs, defense, dunford, education, joe, joint, joseph, jpme, jr., national, ndu, staff