Senior Airman Joel Patterson and Elmo play before physical training March 14 on Joint Base Charleston Air Base. Airman Patterson is a dog handler and Elmo is a military working dog assigned to the 628th Security Forces Squadron. Dog handlers from the 628 SFS reguarly do physical training with thier dogs to give them much needed exercise and play time. (U.S. Air Force photo/ Staff Sgt. Nicole Mickle)

Senior Airman Joel Patterson and Elmo take a jog around McCombs way during physical training March 14 on Joint Base Charleston Air Base. (U.S. Air Force photo/ Staff Sgt. Nicole Mickle)

Staff Sgt. Jonathon Campbell lets Rony take a drink of water after their jog around McCombs Way during physical training March 14 on Joint Base Charleston Air Base. Sergeant Cambell is a dog handler and Rony is a military working dog from the 628th Security Forces Squadron. (U.S. Air Force photo/ Staff Sgt. Nicole Mickle)

Looks can be deceiving. Although Elmo is a happy dog after his morning workout, he is a highly trained asset to the security forces on Joint Base Charleston. (U.S. Air Force photo/NIcole Mickle)