Blood, Sweat, and Stairs
A 312th Training Squadron student enters an aircraft fire trainer during Blood, Sweat, and Stairs at the Louis F. Garland Department of Defense Fire Academy, on Goodfellow Air Force Base, Texas, Oct. 10, 2020. Each obstacle simulated the challenges first responders faced during the attacks on 9/11. (U.S. Air Force photo by Airman 1st Class Ethan Sherwood)