Military working dog Lezer patiently waits for his dental cleaning to begin at the veterinary clinic on Ellsworth Air Force Base, S.D., Dec. 4, 2018. These incredible animals play an important part in keeping Raider Airmen safe and the base secure. They deploy with their handlers and perform different tasks such as sniffing out explosives or running down intruders. (U.S. Air Force photo by Airman John Ennis)