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.

An Air Force crew chief uses his headset to communicate with an F-16 Fighting Falcon aircraft pilot while conducting preflight checks before takeoff during Red Flag 13-3 on Nellis Air Force Base, Nev., March 11, 2013.

An Air Force crew chief uses his headset to communicate with an F-16 Fighting Falcon aircraft pilot while conducting preflight checks before takeoff during Red Flag 13-3 on Nellis Air Force Base, Nev., March 11, 2013.

An Air Force crew chief uses his headset to communicate with an F-16 Fighting Falcon aircraft pilot while conducting preflight checks before takeoff during Red Flag 13-3 on Nellis Air Force Base, Nev., March 11, 2013.

Photo Gallery