U.S. Airmen assigned to the 20th Medical Group lift a stretcher in a formation of four during a training exercise at Shaw Air Force Base, S.C., April 9, 2019. Airmen assigned to the 914th Aeromedical Evacuation Squadron Niagara Falls Air Reserve Wing trained Airmen on proper procedure of moving patients with four and six Airmen holding the stretcher at a time. (U.S. Air Force photo by Airman 1st Class Kaitlyn Brewer)