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.

Seaman Dyamond P. Khammanivong signals to a helicopter hovering above the USS Donald Cook in the Mediterranean Sea, Feb. 8, 2017. Donald Cook, an Arleigh Burke-class guided-missile destroyer, is conducting naval operations in support of U.S. national security interests in Europe and Africa. Navy photo by Petty Officer 3rd Class Alyssa Weeks

Twilight Signal

Seaman Dyamond P. Khammanivong signals to a helicopter hovering above the USS Donald Cook in the Mediterranean Sea, Feb. 8, 2017. Donald Cook, an Arleigh Burke-class guided-missile destroyer, is conducting naval operations in support of U.S. national security interests in Europe and Africa. Navy photo by Petty Officer 3rd Class Alyssa Weeks

Photo Gallery