Joint Task Force Civil Support communications experts configure and test satellite communications-based network connections during a deployment readiness exercise at Fort Eustis, Va., April 16, 2013. Staff members from JTF-CS tested the unit's ability to rapidly respond to a catastrophic event, such as a chemical spill or nuclear detonation, in the U.S. as part of the four-day exercise. (Department of Defense photo by Marine Corps Gunnery Sgt. Jim Goodwin/Released)