Troop Talk Defense Secretary Jim Mattis and NATO Secretary General Jens Stoltenberg speak to troops in Kandahar, Afghanistan, Sept. 28, 2017. DoD photo by Air Force Staff Sgt. Jette Carr SHARE: Download: Full Size (0.82 MB) Credit: Jette Carr VIRIN: 170928-D-GY869-193L.JPG Photo Gallery