Soldiers and Marines with Task Force Operations get ready to decontaminate personnel in Exercise Dauntless Resolve held here March 3-13, 2014. Task Force Operations is one component of Joint Task Force Civil Support's Defense Chemical, Biological, Radiological and Nuclear Response Force. 4th Movement Enhancement Brigade, based out of Fort Leonard Wood, Mo., is on mission as Task Force Operations this year. Dauntless Resolve is a Task Force Operations specific exercise bringing together 600 people, representing a sample of 3,000 military personnel and civilians from 26 task force installations, said Army Col. James F. Reckard III, commander, 4th MEB. The purpose of the exercise is to test the ability of this task force to respond to a complex catastrophic incident in a major metropolitan city. This year's Dauntless Resolve was a simulated 10-Kiloton improvised nuclear detonation in Atlanta. JTF-CS anticipates, plans and prepares for chemical, biological, radiological, and nuclear defense support of civil authority response operations. When directed, JTF-CS deploys to command and control Department of Defense forces in support of civil authority response operations in order to save lives, prevent further injury and provide temporary critical support to enable community recovery.