GRISSOM AIR RESERVE BASE, In. -- Mark Federspiel, Det. 1 Communications Company, Headquarters and Service Battalion, 4th Marine Logistics Group, strains as he participates in a bench press competition at the Grissom Fitness Center here May 13. The fitness center held a variety of activities during May designed to promote physical activity. (U.S. Air Force photo/Becca Hammer)
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