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 airman standing at a table holds up a piece of a metal while talking to students gathered around.

Science Lesson

Air Force Capt. Wale Lawal of the Air Force Research Laboratory teaches students about properties of metals during the USA Science and Engineering Festival in Washington, D.C., April 6, 2018. DoD photo by EJ Hersom

Photo Gallery