Marine Corps Staff Sgt. Adam N. Phillips, Drill Instructor with Golf Company, 2nd Battalion, Recruit Training Regiment, ensures all recruits are ready to enter the gas chamber at Page Field on Marine Corps Recruit Depot, Parris Island, , Dec. 13, 2017. Chemical, biological, radiological and nuclear defense training is designed to teach recruits how to properly put on, use, and clear a gas mask in combat situations. ( Marine Corps photo by Lance Cpl. Yamil Casarreal/Released)

---

Size: 3477px × 2318px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: chamber, corps, field, gas, golf, island, marine, masks, november, page, parris, recruit, training, usmc