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 trainee prepares to enter the last leg of the tactical course at the Basic Expeditionary Airman Training course on Lackland Air Force Base, Texas, Sept. 2, 2009.

TUNNEL TRAINEE

A trainee prepares to enter the last leg of the tactical course at the Basic Expeditionary Airman Training course on Lackland Air Force Base, Texas, Sept. 2, 2009.

Photo Gallery