Staff Sgt. Katie McDermott, 99th Security Forces Squadron out of Nellis Air Force Base, Nevada, rewards her partner, Esme, with a chew toy for finding planted narcotics during a joint Military Working Dog training session at the National Training Center on Fort Irwin, California, Dec. 11. The NTC hosted the first-ever event and invited MWD teams from Edwards and Nellis Air Force bases, as well as Marine Corps Logistics Base-Barstow. (Air Force photo by Giancarlo Casem)