Air Force Alpha Warrior visits Hanscom
Staff Sgt. Richard Grathen, a patrolman for the 66th Security Forces Squadron, navigates an obstacle on the Alpha Warrior Station at Hanscom Air Force Base, Mass., May 9. Grathen was the overall winner of Alpha Warrior at Hanscom. (U.S. Air Force photo by Todd Maki)

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Photo by: Todd Maki  |  VIRIN: 180509-F-TG847-752.JPG