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.

Stephanie Possehl, Director, Engineering Policy and Systems, Office of the Under Secretary of Defense for Research and Engineering (R&E)

200211-A-SS368-0010

Stephanie Possehl, Director, Engineering Policy and Systems, Office of the Under Secretary of Defense for Research and Engineering (R&E), poses for her official portrait in the Army portrait studio at the Pentagon in Arlington, Va., Feb. 11, 2020. (U.S. Army photo by Monica King)

Photo Gallery