Boot Camp
SEYMOUR JOHNSON AIR FORCE BASE, N.C.- Boot camp participants perform a wall squat with a medicine ball here Aug. 15, 2011. The wall squat is a leg isometric exercise that builds endurance and strength. Boot camp is available at the fitness center to all U.S. Air Force members, dependents and Department of Defense civilians. (U.S. Air Force photo by Senior Airman Whitney Lambert/Released)

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Photo by: Senior Airman Whitney LambertReleased |  VIRIN: 110815-F-JA180-420.JPG