U.S. Marine Corps Gen. Joseph F. Dunford Jr., chairman of the Joint Chiefs of Staff, receives a briefing from U.S. Army Lt. Gen. Bernie Champoux, commanding general 8th U.S. Army, and chief of staff for the U.N. command in South Korea, and U.S. Army Col. James Minnich, secretary of the U.N. Command Military Armistice Commission, during his visit to the Demilitarized Zone in South Korea, Nov. 2, 2015. DoD photo by U.S. Navy Petty Officer 2nd Class Dominique A. Pineiro