ELLSWORTH AIR FORCE BASE, S.D. - (Above) Senior Airman Brian Craddock jumps over Airman 1st Class Rene Soriano during the leap frog obstacle in the Ultimate Challenge during the base picnic, July 23. Both Airmen are assigned to the 28th Logistics Readiness Squadron as vehicle operators. (U.S. Air Force photo/Airman 1st Class Corey Hook)