From the leash down
Staff Sgt. Jonathan Cooper, 455th Expeditionary Security Forces Group Military Working Dog handler, and his dog Astra search for Vehicle-Borne Improvised Explosive Devices at Bagram Airfield, Afghanistan, April 29, 2013. Vehicles come from all over Afghanistan and must be searched for VBIED threats before they can enter the installation. (U.S. Air Force photo/Senior Airman Chris Willis)

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