Defense Secretary Dr. Mark T. Esper is briefed on the UUV (Echo Voyager) during a visit to the Boeing Company site in Los Angeles, Sept. 16, 2020. (DoD photo by Lisa Ferdinando)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/68842444@N03">U.S. Secretary of Defense</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/secdef/50351072751/">200916-D-BN624-0385</a>