Readiness

U.S. Marine Corps Cpl. Thomas Ellensohn, a cyber systems administrator with 6th Communication Battalion, Force Headquarters Group, breaks the seal of his gas mask during gas chamber training at Marine Corps Base Camp Lejeune, North Carolina, Oct. 22, 2019. The DPC/RSU-East provided Marine Forces Reserve Marines with chemical, biological, radiological and nuclear defense training in order to build confidence with their gear. (U.S. Marine Corps photo by Sgt. Andy O. Martinez)