U.S. Marine Corps Specialized Service Dog, Quick, assigned to 1st Law Enforcement Battalion, 1st Marine Expeditionary Force, conducts vehicle searches and patrols during Desert Scimitar 2015 at Marine Corps Air Ground Combat Center Twentynine Palms, Calif., April 11, 2015. DS15 is a combined arms exercise focused on the training and preparation of 1st Marine Division for deployment as the Ground Combat Element of a Marine Air-Ground Task Force.