Perimeter Check Air Force Staff Sgt. Bryce Bates, a 48th Security Forces Squadron military working dog handler, and his partner, Gorro, perform a perimeter check at Royal Air Force Lakenheath, England, April 18, 2018. Air Force photo by Senior Airman Elijah Chevalier SHARE IMAGE: Download Image: Full Size (0.52 MB) Tags: Military Working Dogs, Security Forces, K-9 Teams Photo By: Airman 1st Class Elijah Chevalie VIRIN: 180418-F-NR815-0130A.JPG Photo Gallery