Capt. Nathan Knowles, an explosives ordinance and improvised

Capt. Nathan Knowles, an explosives ordinance and improvised explosive device coyote with the Tactical Training Exercise Control Group of Marine Corps Air Ground Combat Center Twentynine Palms, Calif., left, provides feedback to an infantry squad leader with 3rd Battalion, 1st Marine Regiment of Marine Corps Base Camp Pendleton, Calif., during a long range raid training exercise in the desert southeast of Marine Corps Air Station Yuma, Ariz., June 3. The coyotes’ responsibility is to assess and instruct the Marines training for combat.