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.

Chief of Staff of the Army Gen. George W. Casey Jr. joins Company Commanders and 1st Sergeants during a "tactical freeze" portion of a Full Spectrum Operation exercise at Ft. Polk, La., on Oct. 23, 2010. The Full Spectrum exercise focuses on facing and defeating a hybrid threat representing both an insurgent force and an organized military force.

Gen. George W. Casey Jr. joins Company Commanders and 1st Sergeants during a "tactical freeze."

Chief of Staff of the Army Gen. George W. Casey Jr. joins Company Commanders and 1st Sergeants during a "tactical freeze" portion of a Full Spectrum Operation exercise at Ft. Polk, La., on Oct. 23, 2010. The Full Spectrum exercise focuses on facing and defeating a hybrid threat representing both an insurgent force and an organized military force.

Photo Gallery