Tech. Sgt. Kyle Shy, 4th Security Forces Squadron military working dog kennel master, participates in a unit ruck march while carrying the POW/MIA flag on Seymour Johnson Air Force Base, North Carolina, Sept. 10, 2021. The MWD handlers rucked from their kennels to a training facility located on base. (U.S. Air Force photo by Staff Sgt. Victoria Boyton)