Airmen with the 90th Security Forces Group flip a tire in the final event, Team Pain, of the Crow Creek Challenge F.E. Warren Air Force Base, Wyo., Sept. 22, 2017. This is the 23rd year the Crow Creek Challenge has put the 90th Missile Wing’s defenders’ mental and physical capabilities to the test. (U.S. Air Force photo by Airman 1st Class Braydon Williams)