AS THE FOOT PATROL SNAKED INTO THE MOCK AFGHAN TOWN in the foothills of Camp Pendleton, just north of San Diego, the marines scanned courtyards, rooftops, and the crowd of locals milling around the market. A simulated improvised explosive device, or IED, exploded in a trash pile and shook the ground. The role players—Afghans hired to play street vendors, teachers, village officials—shouted and scattered, leaving the streets empty save for two marines lying in the street, deemed wounded for the exercise. One lay motionless. The other writhed and screamed for help. “Get the casualties back ... Read More