U.S. Army Soldiers assigned to the 331st Transportation Company, 11th Trans, Battalion, 7th Trans. Brigade (Expeditionary), take cover during a gas attack during Area Defense training at Fort Pickett, Virginia, Oct. 29, 2018. Using CS Gas in the attacks shows Soldiers how important different protective gear levels are during a real combat environment and allows Soldiers to become more familiar with their equipment. (U.S. Army photo by Spc. Travis Teate)