U.S. Marine Corps recruits with Fox Company, 2nd Recruit Training Battalion, conduct the land navigation course on Marine Corps Recruit Depot Parris Island, S.C., Oct. 17, 2024. Land navigation is part of Basic Warrior Training and is designed to teach recruits how to use a lensatic compass and topographic map. (U.S. Marine Corps photo by Lance Cpl. Julius Hackney)
U.S. Marine Corps Recruits with Mike Company, 3rd Recruit Training Battalion, receive chemical, biological, radiological, and nuclear (CBRN) defense training at Marine Corps Recruit Depot Parris Island, S.C. Oct. 16, 2024. Training for CBRN defense is an event in which recruits experience the exposure of gases and learn how to properly use a gas mask. (U.S. Marine Corps video by Lance Cpl. Alexander Vaughn)