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.

U.S. Marine Corps Lance Cpl. Ryan W. Simms looks through a bore site to ensure the AN/TPQ-36 Firefinder Radar, a highly mobile radar set capable of detecting weapon projectiles, is correctly aligned while Sgt. Calvin R. Wauchope supervises in Helmand province, Afghanistan, July 7, 2009. The radar can detect incoming artillery or rockets up to 24 kilometers away.

LINE OF SIGHT

U.S. Marine Corps Lance Cpl. Ryan W. Simms looks through a bore site to ensure the AN/TPQ-36 Firefinder Radar, a highly mobile radar set capable of detecting weapon projectiles, is correctly aligned while Sgt. Calvin R. Wauchope supervises in Helmand province, Afghanistan, July 7, 2009. The radar can detect incoming artillery or rockets up to 24 kilometers away.

Photo Gallery