FORT HOOD, Texas (Dec. 9, 2022) — Cpl. Joseph Batista, assigned to the Marine Corps Chemical Biological Incident Response Force, based out of Naval Support Facility Indian Head, Maryland, is lowered into a confined space trainer while conducting simulated search and rescue operations during Exercise Sudden Response 23, at Fort Hood, Texas, Dec. 9, 2022. Military units comprising the Defense CBRN Response Force (DCRF) participated in Exercise Sudden Response 23 Dec. 7-13 in Camp Mabry, Austin and Fort Hood, Texas. Teams from Task Force (TF) Aviation, TF Logistics, TF Medical and TF Operations, rehearsed force and equipment employment, life-saving operations and web-based collaborative tools to ensure their ability to execute Defense Support of Civil Authority (DSCA) mission. The DCRF is comprised of up to 5,200 personnel from military units located throughout the nation who come together to help fellow Americans in the event of a catastrophic crisis response. (U.S. Navy photo by Mass Communication Specialist 1st Class David Smalls, III)