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Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

File photo Army Gen. Keith B. Alexander, commander of U.S. Cyber Command and director of the Nation

The Department of Defense provides the military forces needed to deter war and ensure our nation's security.

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