Air Force Staff Sgt. Bobby Brewer and more than 20 other Airmen perform "mountain climbers" during a physical training leader PTL class at Eglin Air Force Base, Fla., March 30, 2012. PTLs lead their flights and squadrons in group physical training sessions during the week throughout the base. Brewer works at the 46th Maintenance Group. Samuel King Jr.

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Keywords: .., air, airman, airmen, athletics, base, defense, eglin, fitness, fla., florida, force, military, physical, sports, united, war