Tech. Sgt. Ricky Dunbar, the noncommissioned officer in charge of the 28th Medical Operations Squadron ambulance services flight, drives an ambulance at Ellsworth Air Force Base, S.D., July 10, 2018. Ambulance services Airmen are on call 24 hours a day and are trained to respond to incidents with minimal delay. (U.S. Air Force photo by Airman 1st Class Thomas Karol)