NAVAL WEAPONS STATION EARLE, N.J. (Nov. 17, 2021) U.S. Army Sgt. 1st Class Leonardo Betancour, decontamination team member, checks Senior Airman Alex J. Potts, survey team member, both with the 21st Weapons of Mass Destruction-Civil Support Team (21st WMD-CST), New Jersey National Guard, for simulated contamination during training with the Emergency Response Training Institute at Naval Weapons Station Earle, N.J., Nov. 17, 2021. The 21st supports civil authorities at man-made or natural disasters by identifying chemical, biological, radiological, and nuclear substances, assess the consequences, and advises on response measures. (National Guard photo by Mark C. Olsen)