U.S. Air Force Staff Sgt. India Smith, a 372nd Training Squadron Detachment 17 NCO in charge of knowledge operations, wipes away a hash mark on a wall inside the Combat Fitness Center during a half “Murph” workout April 25, 2014, at Spangdahlem Air Base, Germany. Smith completed the exercise in less than one hour. (U.S. Air Force photo by Senior Airman Rusty Frank/Released)

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Photo by: Senior Airman Rusty FrankReleased |  VIRIN: 140425-F-YU668-312.JPG