U.S. Air Force Staff Sgt. Chelsea Kennie and Staff

U.S. Air Force Staff Sgt. Chelsea Kennie and Staff Sgt. Ethan Gilman perform a tower rescue during a training exercise on simulated casualty Staff Sgt. David Kearns, all Airmen with the 243rd Engineering Installation Squadron, South Portland Air National Guard, Maine Air National Guard, South Portland, ME, Aug. 3, 2017. Kearns simulated an injury while on the tower and was lowered to safety during the training exercise. (U.S. Air National Guard photo by Staff Sgt. Travis Hill)