YONGSAN, SOUTH KOREA -- Charlie Company, 121st Combat Support Hospital conducted a mass casualty patient decontamination training at the Brian Allgood Army Community Hospital on U.S. Army Garrison Yongsan. The exercise consisted of the setup of a REEVES tent, the methods of decontamination for both litter and ambulatory patients and how to establish a decontamination team. By conducting this training as a walk through phase, the team better prepared themselves for contingency operations in the event of a chemical biological radiological nuclear environment in order to stay ready to 'Fight Tonight'. The training was also a precursor to the upcoming combined joint services patient evacuation exercise.