Tech. Sgt. Rudy Parsons, a pararescueman with the Kentucky Air National Guard’s 123rd Special Tactics Squadron, and his search and rescue dog, Callie, rappel down a cliff in Louisville, Ky., Dec. 7, 2108, as part of Callie’s familiarization training. Callie is currently the only search and rescue dog in the Department of Defense. (U.S. Air National Guard photo by Staff Sgt. Joshua Horton)

Download Image: Full Size (1.81 MB)
Photo by: Staff Sgt. Joshua Horton |  VIRIN: 181207-Z-DI861-0057.JPG