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.

Air Force Maj. Matthew Conlan walks through the cavernous tunnel system below his office in the Crystal City area of Arlington, Va. Conlan was injured in Afghanistan in 2005 and returned to active duty to work at the Air Force's counter-improvised explosive device office. DoD photo by Fred W. Baker III

Air Force Maj. Matthew Conlan walks through the cavernous tunnel system below his office in the Crystal City area of Arlington, Va. Conlan was injured in Afghanistan in 2005 and returned to active duty to work at the Air Force's counter-improvised explosive device office. DoD photo by Fred W. Baker III

Air Force Maj. Matthew Conlan walks through the cavernous tunnel system below his office in the Crystal City area of Arlington, Va. Conlan was injured in Afghanistan in 2005 and returned to active duty to work at the Air Force's counter-improvised explosive device office. DoD photo by Fred W. Baker III

Photo Gallery