An Airman participates in the 4.5-mile Police Week Ruck Challenge at Heritage Lake on Ellsworth Air Force Base, S.D., May 13, 2019. The event was organized by the 28th Security Forces Squadron in honor of National Police Week. The week is dedicated to the countless numbers of law enforcement officers who have died while serving and protecting communities nationwide. (U.S. Air Force photo by Airman 1st Class Christina Bennett)