Sergeant Joseph Martin directs his Marines during a counter improvised explosive device training patrol at the Yuma Proving Grounds, Yuma, Ariz., Oct. 3
Lance Cpl. Gregory Gruman sweeps a patrol route with a mine detector during a counter improvised explosive device training patrol at the Yuma Proving Grounds, Yuma, Ariz., Oct. 3. Gruman, an Alexandra, La., native serves as an assaultman with Weapons Platoon, Company K, 3rd Battalion, 6th Marine Regiment, 2nd Marine Division. 3/6 is in Yuma supporting the Weapons and Tactics Instructor Course taught by Marine Aviation Weapons and Tactics Squadron-1 located at Marine Corps Air Station Yuma, Ariz.
