An official website of the United States government

Here's how you know

Official websites use .mil

A .mil website belongs to an official U.S. Department of Defense organization in the United States.

Secure .mil websites use HTTPS

A lock () or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

Marines

News

The latest news and the coverage of news, events, videos, tweets and more from the U.S. Marine Corps.

Tag: Gas Camber

Sgt. Caleb Renner, the chief chemical, biological, radiological, and nuclear instructor with II Marine Headquarters Group, gives an hour-long class on how to properly wear and function in a M50 gas mask at Marine Corps Base Camp Lejeune, N.C., Jan. 8, 2016. The chamber is a routine exercise to ensure the durability of each Marines gear while exposed to chlorobenzylidene malononitrile, or CS gas, which is a bi-annual qualification requirement for Marines. - Sgt. Caleb Renner, the chief chemical, biological, radiological, and nuclear instructor with II Marine Headquarters Group, gives an hour-long class on how to properly wear and function in a M50 gas mask at Marine Corps Base Camp Lejeune, N.C., Jan. 8, 2016. The chamber is a routine exercise to ensure the durability of each Marines gear while exposed to chlorobenzylidene malononitrile, or CS gas, which is a bi-annual qualification requirement for Marines.

Even Marines cry here: II MEF conducts gas chamber

Marines with Combat Logistics Battalion 24 and II Marine Headquarters Group conducted a chlorobenzylidene malononitrile, or CS gas chamber at Marine Corps Base Camp Lejeune, North Carolina, Jan. 8, 2016.As of fiscal year 2015, Marines are now required to qualify bi-annually at the gas chamber.Marines, while exposed to CS gas, must conduct a series

Marines TV: MCRD San Diego Golf Company Graduation

MCRD San Diego Golf Company Graduation

13th MEU | Integrated Training Underway

Marine Corps Air Station Iwakuni hosts inaugural Sergeant School

13th MEU | Highlight Reel

Archipelago Endeavor 26 | Into the Unknown

Innovation with Capt. Robert Werner and the creation of "Oversight"

Welcome to the High North | "This is our foothold in the Arctic."

Welcome to the High North | "This is our foothold in the Arctic."

Staff Sgt. Aaron Troyer shares his story

Marine Corps Reserve 110th Anniversary

Reel 5: What Do Marines Do When Times Are Difficult?

Reel 8: What Would You Tell Your Younger Self?

Reel 7: Who Can You Rely on?

Reel 6: Who Can Rely on You?

In The News

Marine Corps Confirms Plan to Add 6,500 Positions as Drone and AI Units Expand

9/08/2026 - https://www.military.com/marine-corps-confirms-plan-to-add-6500-positions-as-drone-and-ai-units-expand

Marine Corps releases blueprint for future warfare, including robotics and AI

9/03/2026 - https://www.washingtontimes.com/news/2026/aug/31/marine-corps-releases-blueprint-future-warfare-including-robotics-ai/

US Marines join amphibious, island-recapture drills across Indonesia

9/01/2026 - https://www.stripes.com/theaters/asia_pacific/2026-08-31/island-recapture-exercise-indonesia-22687488.html

U.S. Marine Corps Rehearses Deploying Air Defense Radar to the Philippines

8/28/2026 - https://news.usni.org/2026/08/27/u-s-marine-corps-rehearsed-deploying-air-defense-radar-to-the-philippines

Marines, corpsmen ‘ran toward’ Twentynine Palms home rocked by explosion

8/26/2026 - https://www.marinecorpstimes.com/news/your-military/2026/08/25/marines-corpsmen-ran-toward-twentynine-palms-home-rocked-by-explosion/

Latest Tweets