Lt. Gen. Darryl Roberson, commander, Air Education and Training Command, and Maj. Garon Shelton, 341st Training Squadron commander, speak to a Marine military working dog instructor course student Oct. 22, 2015, at Joint Base San Antonio-Lackland, Texas. Roberson visited the 37th Training Group High Bay area, where members of the 37th Training Group, the largest and most diverse training group in the Air Force, gave a visual display of their particular missions. The 341st TRS provides trained military working dogs and handlers for the Department of Defense and the Transportation Security Authority.