Sergeant Michael J. McMahan of the U.S. Army Reserves 401st Chemical Company, Boston, Mass., conducts training on procedures for preparing a High-Mobility Multipurpose Wheeled Vehicle (HMMWV) for sling load operations, in support of multiple Army Reserve Chemical Companies. This is one of many activities in support of Operation Red Dragon, a joint civilian-military exercise to test coordinated response to a simulated nuclear and chemical bomb attack at Fort McCoy, Wis., from June 23, 2005 to June 24, 2005. (U.S. Army photo by STAFF SGT. Brian D. Lehnhardt) (Released)