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.

A Basic Underwater Demolition/SEAL student moves through the weaver during an obstacle course evolution in the first phase of training at Naval Amphibious Base Coronado, Calif., Oct. 29, 2009. The course is one of many physically strenuous exercises during seven weeks of training.

WEAVER'S WORK

A Basic Underwater Demolition/SEAL student moves through the weaver during an obstacle course evolution in the first phase of training at Naval Amphibious Base Coronado, Calif., Oct. 29, 2009. The course is one of many physically strenuous exercises during seven weeks of training.

Photo Gallery