Sgt. 1st Class Jang Won Park, (right), and Sgt. 1st Class Jin Young Noh (middle), both assigned to the 24th Korean Chemical Special Forces Battalion, from South Korea, photograph a chemical lab setup Dec. 13 during a weeklong training exercise in Elma, Wash., with the 11th Chemical Company, 110th Chem. Battalion (Technical Escort), out of Joint Base Lewis-McChord, Wash. The mission, which had a Korean team removing a simulated mustard gas agent from an abandoned facility, culminated the week.