Meeting Airmen Defense Secretary Jim Mattis, right, shakes hands and talks with airmen after arriving at Minot Air Force Base, N.D., Sept. 13, 2017. DoD photo by Air Force Staff Sgt. Jette Carr SHARE IMAGE: Download Image: Full Size (1.34 MB) Tags: Travels , JIm Mattis, nuclear, SecDef, Northcom, Northern Command, AIR FORCE, Airmen Photo By: Jette Carr VIRIN: 170913-D-GY869-317.JPG Photo Gallery