U.S. Marine Corps Cpl. McKevin Lusung, back, and Holland

U.S. Marine Corps Cpl. McKevin Lusung, back, and Holland Moser, both chemical, biological, radiological, and nuclear (CBRN) defense specialists with Headquarters Battalion, 2d Marine Division, test hazardous substances during a biological lab scenario on Camp Lejeune, N.C., Feb. 18, 2021. The scenario tested the ability of the Marine to respond to a hazardous environment and properly identify, handle, and dispose of hazardous material and waste. (U.S. Marine Corps photo by Pfc. Sarah Hediger)