U.S. Air Force Staff Sgt. Homero Valdez, 18th Medical Support Squadron NCO-in-charge of acquisitions, climbs up an obstacle July 28, 2018, at Kadena Air Base, Japan. Adding to the difficulty of the challenge, competitors were given a time limit of two minutes to complete all 11 obstacles on the course. (U.S. Air Force photo by Senior Airman Kristan Campbell)