Staff Sgt. Lupe A. Irlas, a Fresno, Calif., native, now a platoon sergeant with A Battery, 1st Battalion, 84th Field Artillery Regiment, 170th Infantry Brigade Combat Team along with Capt. James D. Thornton, an East Bernard, Texas native, now the battery commander for A Battery, and Pfc. Zachary A. Shanafelt, a Grand Rapids, Mich., native, now a combat medic with A Battery, survey the area as Navy explosive ordnance disposal technicians examine a potential improvised explosive device outside the town of Shakh, Afghanistan March 28, 2011.