U.S. Air Force Airman 1st Class Kristopher Burke, 60th Security Forces Squadron installation access controller, gives remarks before a 5k memorial ruck march honoring Master Sgt. John A. Chapman at Travis Air Force Base, California, March 25, 2022. Burke planned the ruck march to honor Chapman, the combat controller who lost his life and earned a medal of honor for his heroic actions in 2002. (U.S. Air Force photo by Nicholas Pilch)
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