U.S. Marine Corps Drill Instructors with Fox Company, 2nd Recruit Training Battalion, Recruit Training Regiment, correct a recruit after running out of the gas chamber during the chemical, biological, radiological, and nuclear defense training on Marine Corps Recruit Depot Parris Island, S.C., April 3, 2026. Recruits are exposed to CS gas in order to familiarize themselves with the use of their gas masks. (U.S. Marine Corps photo by Cpl. Jordy Morales)
U.S. Navy corpsmen in the Indoctrination Division Course (IDIV) participate in a mass casualty training event on Marine Corps Recruit Depot Parris Island, S.C., March 25, 2025. The mass casualty training event tested corpsman new to the island on procedures for treating numerous casualties.