2nd Supply Battalion conduct Gas Chamber Marines enter a gas chamber at Camp Lejeune, N.C., March 14, 2017. 2nd Supply Battalion conducted gas chamber training to ensure that Marines are capable of defending themselves in case of a chemical, biological, radiological or nuclear attack. Marine Corps photo by Lance Cpl. Raul Torres SHARE IMAGE: Download Image: Full Size (1.11 MB) Photo By: Lance Cpl. Raul Torres VIRIN: 170314-M-HH114-004.JPG Photo Gallery