Staff Sgt. Lino Estacion, a military dog handler with the 386th Expeditionary Security Forces Squadron at a non-disclosed base in Southwest Asia, takes his military working dog, Gabe, through an obstacle course July 27, 2010, as part of a routine training and exercise program. MWDs safeguard base assets and personnel by using their powerful sense of smell to detect dangers during foot patrols and other anti-terrorism tasks. Highly driven military dogs are used in patrol and drug- and explosive-detection missions. Sergeant Estacion is deployed from the 60th Security Forces Squadron at Travis Air Force Base, Calif. (U.S. Air Force Photo/Senior Airman Laura Turner)