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.

Defense Secretary Ash Carter receives a Stanford sweater at the Drell Lecture at Stanford University, April 23, 2015. Carter delivered a lecture at Stanford, where he unveiled the Defense Department's new cyber strategy.

Carter Receives Stanford University Memento

Defense Secretary Ash Carter receives a Stanford sweater at the Drell Lecture at Stanford University, April 23, 2015. Carter delivered a lecture at Stanford, where he unveiled the Defense Department's new cyber strategy.

Photo Gallery