Tech. Sgt. Ricky Dunbar, the noncommissioned officer in charge of the 28th Medical Operations Squadron ambulance services flight, responds to a call 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)