A firefighter with the Qatar Emiri Air Force Fire Department, Al Udeid Air Base, center, carriers a 175-pound mannequin to the finish line of a firefighter combat challenge at Al Udeid Air Base, Qatar, Sept. 1, 2017. The firefighter is taking part in a firefighter combat challenge where they have to complete nine stations with the purpose of testing their physical fitness and response to structural fires. (U.S. Air Force photo by Tech. Sgt. Amy M. Lovgren)