Airman Levi Jackson, 319th Comptroller Squadron financial services technician apprentice, strains during a pushup April 9, 2015, at the Fitness Center on Grand Forks Air Force Base, N.D. Jackson was one of many competitors in the Shirt’s Council Push Up-A-Thon. Competitors solicit pledges to help raise funds for the First Sergeants Council Operation Warm Heart, which provides charity and morale programs to GFAFB Airmen. (U.S. Air Force photo by Airman 1st Class Ryan Sparks/released)
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