Blood, Sweat, and Stairs
A U.S. Army Soldier fires a hose at a target after dragging it during Blood, Sweat, and Stairs at the Louis F. Garland Department of Defense Fire Academy on Goodfellow Air Force Base, Texas, Oct. 5, 2019. Though the challenges were meant to be fun, they were used to honor those involved in 9/11. (U.S. Air Force photo by Airman 1st Class Ethan Sherwood/Released)

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Photo by: Airman 1st Class Ethan Sherwood |  VIRIN: 191005-F-ZB472-1233.JPG