Senior Airman Chase Loggins, a 28th Security Forces Squadron military working dog handler, guides MWD Boris through the obstacle course at the 28th SFS K-9 Facility on Ellsworth Air Force Base, S.D., May 16, 2019. The K-9 obstacle course was designed to prepare MWDs and their handlers for challenges they may encounter in the field. (U.S. Air Force photo by Airman 1st Class Christina Bennett)