U.S. Marine Corps Gen. Joseph F. Dunford Jr., chairman of the Joint Chiefs of Staff, speaks with U.S. Army Lt. Gen. Bernard S. Champoux, commanding general the 8th U.S. Army and chief of staff of the United Nations Command in South Korea, during a trip to the Demilitarized Zone dividing the two Koreas, Nov. 2, 2015. DoD photo by U.S. Navy Petty Officer 2nd Class Dominique A. Pineiro