Richard Tyson, Joint Task Force Civil Support network engineer, sets up a deployed communications network during an internal communication exercise at Fort Eustis, Va., April 16, 2014. Members of the communications directorate conducted an internal exercise to validate their communications equipment in preparation for the upcoming Sudden Response command post exercise in May and to train new personnel. JTF-CS anticipates, plans and prepares for chemical, biological, radiological and nuclear defense support to civil authorities. (Department of Defense photo by U.S. Navy Petty Officer 1st Class Brian Dietrick/Released)