U.S. Air Force Senior Master Sgt. Brad Clark, 927th Aeromedical Staging Squadron senior non-commissioned officer in-charge, explains to Reserve Citizen Airmen, Soldiers and Sailors how to enter and exit an aircraft during an Engines Running Onload and Offload training scenario on Aug. 15, 2018 at Fort McCoy, Wisc. During the training, servicemembers practiced loading and unloading patients. (U.S. Air Force photo by Staff Sgt. Xavier Lockley)