Air Force Reservists from the 940th Air Refueling Wing at Beale Air Force Base, Calif., train on proper decontamination techniques in a simulated combat environment during an ability to survive and operate exercise July 8, 2007. the exercise is designed to help the 940th ARW prepare for an Operational Readiness Inspection in February 2008. (U.S. Air Force photo/Staff Sgt. Luke Johnson)