200128-N-OE749-0004 KILEEN, Texas (January 28, 2020) Navy Capt. Brian Hatch, assigned to Joint Task Force Civil Support’s operations department, speaks with local media from KWTX news network during Exercise Sudden Response 20. Military units comprising the Defense Chemical, Biological, Radiological, and Nuclear (CBRN) Response Force (DCRF) are participating in the exercise, which is taking place in Killeen, Austin and Ft. Hood, Texas, from Jan. 24-29, 2020. As part of the exercise, teams are rehearsing force and equipment employment, life-saving operations and web-based command and control collaborative tools to ensure their ability to execute Defense Support of Civil Authority missions. The DCRF is comprised of approximately 5,000 personnel from military units located throughout the nation who come together to help fellow Americans in the event of a CBRN disaster response.(U.S. Navy photo by Chief Mass Communication Specialist Barry Riley/Released)