FORT POLK, La., April 23, 2010 – It was April 2007 and the early-morning sky was clear as Army sniper Sgt. 1st Class Brandon McGuire and his spotter scanned for insurgents near Forward Operating Base Iskandaryia in Iraq. "We were observing a stretch of road that had recently been cleared of IEDs [improvised explosive devices]," said McGuire, now the first sergeant of Alpha Troop, 1st Battalion (Airborne), 509th Infantry Regiment that’s based here. "The area had also seen a lot of mortar activity,” McGuire recalled. “We had several soldiers killed and severely wounded along that stretch of road by IEDs...