Marine Corps Gen. Joseph F. Dunford Jr., 19th Chairman of the Joint Chiefs of Staff, is briefed by U.S. Army Col. James Minnich, secretary of the United Nations Command Military Armistice Commission, during his visit to the Demilitarized Zone in the Republic of Korea, Nov. 2, 2015 (DoD photo by Navy Petty Officer 2nd Class Dominique A. Pineiro)