Staff Sgt. Stephen Baker, 736th Security Forces Squadron training NCO in charge, explains the requirements for the Memorial Day CrossFit “Murph,” May 23, 2013, on Andersen Air Force Base, Guam. The workout consisted of a one-mile run, 100 pull-ups, 200 pushups, 300 squats, then another one-mile run to pay homage to service members who made the ultimate sacrifice in the line of duty. (U.S. Air Force photo by Airman 1st Class Mariah Haddenham/Released)