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.

U.S. Navy Lt. Michael Kavanaugh takes water samples as a Guatemalan boy watches in Puerto Barrios, Guatemala, Sept. 10, 2010. Kavanugh and other sailors aboard the USS Iwo Jima are participating in the Continuing Promise 2010 humanitarian civic assistance mission.

WATER SAMPLE

U.S. Navy Lt. Michael Kavanaugh takes water samples as a Guatemalan boy watches in Puerto Barrios, Guatemala, Sept. 10, 2010. Kavanugh and other sailors aboard the USS Iwo Jima are participating in the Continuing Promise 2010 humanitarian civic assistance mission.

Photo Gallery