A KC-135 Stratotanker prepares to refuel a C-5M Super Galaxy from the 433rd Airlift Wing during a civic leader tour to Davis-Monthan Air Force Base, Arizona, Nov. 16, 2017. The 22 civic leaders from Military City U.S.A. visited the 943rd Rescue Group and toured the 309th Aerospace Maintenance and Regeneration Group, also known as "The Boneyard" and the Arizona Air National Guard’s 162nd Wing. (U.S. Air Force Photo by Tech. Sgt. Carlos Trevino)