MCCHORD FIELD, Wash.- Reservists with the 446th Aeromedical Evacuation Squadron and 446th Aerospace Medicine Squadron out of McChord Field, Wash., approach an Army CH-47 Chinook helicopter, from Joint Base Lewis-McChord- Main, in order to unload and treat wounded patients during a medical training exercise, Oct. 4, 2011. Some of the training covered was advanced cardiac life support training, which is a training requirement for medical personnel. The medical crews took the "wounded" to a mock treatment facility for medical care. (U.S. Air Force photo by Jake Chappelle)