Tech. Sgt. Brandon M. Harrist, an aircraft electrical and environmental systems craftsman assigned to the 149th Maintenance Squadron, Texas Air National Guard, and Col. Susan M. Dickens, commander of the 149th Mission Support Group, Texas Air National Guard, with DDexter and YYork, military working dogs in training, which they are fostering as part of the Department of Defense's Military Working Dog Breeding Program, at Joint Base San Antonio - Lackland, Texas, Nov. 20, 2014. Harrist and Dickens are members of the 149th Fighter Wing, Texas Air National Guard, which is headquartered at JBSA-Lackland. (U.S. Air National Guard photo by Senior Master Sgt. Miguel Arellano / Released)