Troop Talk Defense Secretary Jim Mattis meets with troops at the Resolute Support Headquarters in Kabul, Afghanistan, April 24, 2017. DoD photo by Air Force Tech. Sgt. Brigitte N. Brantley SHARE: Download: Full Size (1.04 MB) Credit: Brigitte N. Brantley VIRIN: 170424-D-GO396-0714L.JPG Photo Gallery