81st SFS hosts Defender's Challenge Ruck
Members of the Keesler Marine Detachment team participate in the pull-up portion of the 81st Security Forces Squadron Defender's Challenge Ruck near the Crotwell Track on Keesler Air Force Base, Mississippi, Aug. 16, 2019. The competition, consisting of 11 four-person teams, completing seven obstacles, was one of several events in recognition of The Year of the Defender. (U.S. Air Force photo by Kemberly Groue)