U.S. Army Pfc. Moody Watson, front right, provides simulated first aid to a mannequin during a company mass casualty training exercise at Bagram Airfield in Parwan province, Afghanistan, March 24, 2013. From left, Pfc. Alicia Baum, Maj. Khalid Jaboori, and Staff Sgt. Maria Morales, all with the Headquarters and Headquarters Company, 555th Engineer Brigade, look on.