91st Security Support Squadron cares for base vehicles
Staff Sgt. Calvin Smith, 91st Missile Security Force Squadron flight security controller, cleans a dipstick to check a Humvee’s fluids at Minot Air Force Base, N.D., Mar. 28, 2017. Security forces members are required to inspect all vehicles prior to use. (U.S. Air Force photo/Airman 1st Class Austin M. Thomas)