U.S. Air Force Staff Sgt. Timothy Sudduth, a member 140th Force Support Squadron, removes his gas mask after processing through the Contamination Control Area during an Operational Readiness Exercise at Buckley Air Force Base, Colo., April 13, 2012. The CCA is a designated area to remove contaminated chemical protective overgarments through a process that will keep contaminates from causing harm to members while removing the protective items. Guard members are taking part in the exercise to prepare for real-world deployments as well as the upcoming Operational Readiness Inspection in May.