U.S. Air Force Airman 1st Class Isaac Fontoura, a defender assigned to the 97th Security Forces Squadron (SFS), runs around the base track during a Ruck Run on May 13, 2020 at Altus Air Force Base, Oklahoma. Throughout the day, 97th SFS defenders ran the same number of laps as law enforcement officers who passed away while on duty during 2019. (U.S. Air Force photo by Airman 1st Class Breanna Klemm)