Soldiers with Headquarters and Headquarters Company, 1st Battalion, 63rd Armor Regiment, 2nd Advise and Assist Brigade, 1st Infantry Division, United States Division-Center move a simulated casualty onto a litter prior to moving him to a designated medical evacuation landing zone during a situational training exercise July 15, 2011 at Camp Liberty, Iraq. The exercise tested the soldiers' ability to respond to an attack on their convoy in an area with a civilian presence.