Fit to fight Published Feb. 5, 2015 931st Air Refueling Group MCCONNELL AIR FORCE BASE, Kan. -- Master Sgt. Jay Guldjord, a refueling boom operator assigned to the Air Force Reserve 18th Air Refueling Squadron, 931st Air Refueling Group, McConnell Air Force Base, Kan., strains to complete a set of high repetition dumbbell curls during a group workout at the base fitness center, Feb. 4, 2015. Several members of the 18 ARS meet at the fitness center daily to participate in organized group workouts to improve overall unit fitness and to stay "fit to fight." (U.S. Air Force photo by Capt. Zach Anderson)