Army Gen. John W. Nicholson, left, Commander of the Resolute Support Mission and U.S. Forces Afghanistan, Marine Corps Gen. Joe Dunford, center, chairman of the Joint Chiefs of Staff, and Army Command Sgt. Maj. John W. Troxell, Senior Enlisted Advisor to the Chairman of the Joint Chiefs of Staff, prepare for a meeting at Resolute Support Mission headquarters in Kabul, Afghanistan, June 26, 2017. Dunford was in Afghanistan meeting with U.S., coalition and Afghan leaders. DoD photo by Army Sgt. James K. McCann