Chemical, biological, radiological, nuclear defense

Chemical, biological, radiological, nuclear defense specialists with the 31st Marine Expeditionary Unit conduct a demonstration of Marine Corps standards and protocols for scrubbing and screening for CBRN threats with Royal Thai sailors and Marines as part of exercise Cobra Gold 2020 at Camp Jessada, Kingdom of Thailand, March 1, 2020. Exercise Cobra Gold 20 is the largest theater security cooperation exercise in the Indo-Pacific region and is an integral part of the U.S. commitment to strengthen engagement in the region. (U.S. Marine Corps photo by Lance Cpl. Kevan Dunlop)