Staff Sgt. Jeremy Hammer, 2nd Security Forces Squadron military working dog handler, prepares Caro, a 2nd SFS MWD, for an obstacle course on Barksdale Air Force Base, La., July 8, 2013. MWDs aid Barksdale's mission of delivering precision munitions to the battlefield by providing an extra layer of protection and serve as a deterrent to potential enemies. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Staff Sgt. Jeremy Hammer, 2nd Security Forces Squadron military working dog handler, runs Caro, 2nd SFS MWD, through an obstacle course on Barksdale Air Force Base, La., July 8, 2013. MWDs are trained from a young age to sniff out drugs and explosives while accompanying Security Forces members on patrols. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Staff Sgt. Jeremy Hammer, 2nd Security Forces Squadron military working dog handler, runs Caro, 2nd SFS MWD, through an obstacle course on Barksdale Air Force Base, La., July 8, 2013. Security Forces Airmen attend a three-month long course at Lackland Air Force Base, TX, in order to become certified handlers. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Caro, 2nd Security Forces Squadron military working dog, plays with a ball on Barksdale Air Force Base, La., July 8, 2013. The 2nd SFS assists local law enforcement agencies when there is a threat to public safety. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Staff Sgt. Jeremy Hammer, 2nd Security Forces Squadron military working dog handler, and Caro, 2nd SFS MWD, pose for a photo on Barksdale Air Force Base, La., July 8, 2013. Hammer is a MWD handler whose duties include detecting threats to Barksdale and deterring potential adversaries. (U.S. Air Force photo/Airman 1st Class Andrew Moua)
Staff Sgt. Jeremy Hammer, 2nd Security Forces Squadron military working dog handler, runs Caro, 2nd SFS MWD, through an obstacle course on Barksdale Air Force Base, La., July 8, 2013. Handlers exercise and train their MWD on a daily basis. (U.S. Air Force photo/Airman 1st Class Andrew Moua)