Ellsworth's military working dogs
(Left) Senior Airman William Knight, 28th Security Forces Squadron dog handler, watches Rex, 28 SFS military working dog, chasing after a simulated attacker during aggression training in the obstacle course, here, May 6. Dog handlers perform training with their dogs daily to ensure deployment and real world readiness. (U.S. Air Force photo/Airman 1st Class Joshua J. Seybert)