CAMP LEJEUNE, N.C. (Jan. 28, 2021) Marine Corps Pfc. John Thies (right), an anti-tank missileman with 2d Light Armored Reconnaissance Battalion, 2d Marine Division, clears his M50 Joint Service General Purpose Masks during an Individual Protective Equipment Confidence Exercise on Camp Lejeune, N.C., Jan. 28, 2021. The Marines rehearsed donning and clearing their M50 Joint Service General Purpose Masks in a contaminated environment, and received instructions on how to react after a notional CBRN attack in the field. (U.S. Marine Corps photo by Cpl. Elijah J. Abernathy)