Man’s best friend: canine Defenders retire after years of service
U.S. Air Force 19th Security Forces Squadron military working dogs Britt and William, retire from active duty service at Little Rock Air Force Base, Arkansas, Nov. 14, 2018. MWDs have been part of the Air Force since its conception, and their history spans back as long as the military itself. (U.S. Air Force photo by Senior Airman Grace Nichols)

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Photo by: Senior Airman Grace Nichols |  VIRIN: 181114-F-ZF546-1103.JPG