Staff Sgt. Britney Simpson, 47th Security Forces Squadron military working dog handler, pets her partner, Eewok, after running him through an obstacle course at Laughlin Air Force Base, Texas, April 17, 2013. Members of the 47th SFS dog handler unit keep a close relationship with their canine companions to promote trust and operational readiness. (U.S. Air Force photo/Airman 1st Class John D. Partlow)