Afghanistan Greeting Defense Secretary Jim Mattis and Army Gen. John Nicholson, Resolute Support commander, meet with some of the mission's senior leaders and commad staff at the Resolute Support Headquarters in Kabul, Afghanistan, April 24, 2017. DoD photo by Air Force Tech. Sgt. Brigitte N. Brantley SHARE IMAGE: Download Image: Full Size (0.37 MB) Tags: Travels , JIm Mattis, Central Command, Centcom, SecDef, Resolute Support, Afghanistan Photo By: Tech. Sgt. Brigitte N. Brantley VIRIN: 170424-D-GO396-0180.JPG Photo Gallery