Soldiers from 178th Engineer Company, 1st Maneuver Enhancement Brigade (MEB), are isolated in a simulated decontamination point during a field exercise at Fort Polk, Leesville, La., Dec. 6, 2011. The exercise was scheduled December 5-9, at the Combined Arms Collective Training Facility, where a scenario was depicted of a radiation decontamination shower. Soldiers of 178th Engineer Company and other elements of 1st Maneuver Enhancement Brigade, are assigned in support of the Joint Task Force Civil Support, Defense Chemical Biological Radiological and Nuclear Response Force (DCRF). The DCRF is a total force of about 5,400 personnel consisting of primarily Army with augmentation from other services and civilians from active-duty, National Guard and Reserve units, who deploy as the Department of Defense's initial response force for a Chemical, Biological, Radiological, Nuclear and Enhanced Conventional Weapons (CBRNE) incident.