U.S. Air Force Staff Sgt. Michael Rusaw, 39th Security Forces Squadron flight chief, takes part in the 2018 Police Week ruck march as a “Ghost Walker” at Incirlik Air Base, Turkey, May 19, 2018. Rusaw, along with other 39th SFS members, became a “Ghost Walker” in honor of defenders who have given the ultimate sacrifice. (U.S. Air Force photo by Staff Sgt. Kimberly Nagle)

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Photo by: Staff Sgt. Kimberly Nagle |  VIRIN: 180519-F-XR514-1090.JPG