An official website of the United States Government 
Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

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

Photos

Snapshots of what’s happening in the Defense Department.

A soldier applies his gas mask before continuing his mission.

Gas Mask

Army Reserve Pfc. Joseph Gomez applies his gas mask before continuing his mission during Operation Lethal Warrior at Fort McCoy, Wis., Aug. 10, 2018. Gomez is assigned to the 437th Ground Ambulance Company. Army Reserve photo by Spc. John Russell

Photo Gallery