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. Air Force Staff Sgt. Christian Johnson lends a hand to 1st Lt. Miranda Thompson as they use a rope to climb a wall during a Defender Challenge course on an air base in Southwest Asia, April 25, 2009. Thompson and Johnson are assigned to the 380th Expeditionary Mission Support Group.

U.S. Air Force Staff Sgt. Christian Johnson lends a hand to 1st Lt. Miranda Thompson as they use a rope to climb a wall during a Defender Challenge course on an air base in Southwest Asia, April 25, 2009. Thompson and Johnson are assigned to the 380th Expeditionary Mission Support Group.

U.S. Air Force Staff Sgt. Christian Johnson lends a hand to 1st Lt. Miranda Thompson as they use a rope to climb a wall during a Defender Challenge course on an air base in Southwest Asia, April 25, 2009. Thompson and Johnson are assigned to the 380th Expeditionary Mission Support Group.

Photo Gallery