Senior Airman Jonathan Johnson, 436th Aerospace Medical bioenvironmental engineer, fights to complete the obstacle course during the Alpha Warrior battle station competition May 17, 2017, on Dover Air Force Base, Del. The competition was a part of the Air Force Services Activity initiative to promote functional fitness and to continue building on Comprehensive Airman Fitness. (U.S. Air Force photo by Staff Sgt. Jared Duhon)
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