Airmen assigned to the 90th Security Forces Squadron participate in Crow Creek Challenge 2021 at F.E. Warren Air Force Base, Wyo., Oct. 1, 2021. The annual event tests Airmen’s physical abilities and mental fortitude through tasks including fireman and litter carries, a Humvee push, mock explosive ordnance device searches and career field knowledge checks given by security forces subject matter experts. (U.S. Air Force photo by Airman 1st Class Charles Munoz)