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 Marine participates in a gas mask exercise at Marine Corps Air Station Futenma in Okinawa, Japan, Feb. 2. 2017. Marine Corps photo by Lance Cpl. Brooke A. Deiters

Gas Mask Ready

A Marine participates in a gas mask exercise at Marine Corps Air Station Futenma in Okinawa, Japan, Feb. 2. 2017. Marine Corps photo by Lance Cpl. Brooke A. Deiters

Photo Gallery