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 Association Chairman Joseph E. Sutter, left, Air Force Chief of Staff Gen. Norton Schwartz, center left, Air Force Secretary Michael B. Donley, center right, and Deputy Defense Secretary William J. Lynn III cut the ribbon to officially start the Air Force Association Air and Space Conference and Technology Exposition in National Harbor, Md., Sept. 13, 2010.

RIBBON CUTTERS

Air Force Association Chairman Joseph E. Sutter, left, Air Force Chief of Staff Gen. Norton Schwartz, center left, Air Force Secretary Michael B. Donley, center right, and Deputy Defense Secretary William J. Lynn III cut the ribbon to officially start the Air Force Association Air and Space Conference and Technology Exposition in National Harbor, Md., Sept. 13, 2010.

Photo Gallery