Senior Airman David Culbertson and Airman 1st Class Brock Kelley, 15th Operational Weather Squadron, compete in the tire flip competition during the Unit Fitness Challenge May 20, 2016 at Scott Air Force Base, Illinois. The event encouraged competition and camaraderie amongst units from around the base such as Air Mobility Command, U.S. Transportation Command and many others. (U.S. Air Force photo by Tech. Sgt. Jonathan Fowler)