SECDEF visits Minot AFB
Secretary of the Defense Jim Mattis speaks with Airmen at Minot Air Force Base, N.D., Sept. 13, 2017. During his visit, Mattis toured 5th Bomb Wing and 91st Missile Wing units and spoke with Airmen emphasizing the importance of the nuclear deterrence mission. (U.S. Air Force photo/Senior Airman J.T. Armstrong)