Master Sgt. Rudy Parsons, a pararescueman with the Kentucky Air National Guard’s 123rd Special Tactics Squadron, and Callie, his search and rescue dog, land at Volk Field, Wis., July 17, 2019, as part of a domestic operations exercise. 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) - Master Sgt. Rudy Parsons, 123rd Special Tactics Squadron pararescueman, and Callie, his search and rescue K-9, land at Fort McCoy, Wis., July 17, 2019, as part of a domestic operations exercise. Callie is currently the Defense Departments’ only SAR dog. (U.S. Air National Guard photo by Staff Sgt. Joshua Horton)