A multipurpose canine with the United States Army Rangers

A multipurpose canine with the United States Army Rangers attempts to pick up a scent during an open area detection exercise, with the United States Marine Corps Forces Special Operations Command (MARSOC), on Camp Pendleton, Calif., on Feb. 2, 2016. MARSOC specializes in direct action, special reconnaissance and foreign internal defense and has also been directed to conduct counter-terrorism, and information operations. (U.S. Marine Corps Photo by Lance Cpl. Roderick Jacquote, MCIWEST-MCB CamPen/Released)