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 Petty Officer 3rd Class Tony Jackson calibrates an oscilloscope in the aircraft intermediate maintenance department calibration laboratory aboard the aircraft carrier USS Nimitz (CVN 68) while underway in the Pacific Ocean conducting flight deck certification after completing a six-month planned incremental availability on Jan. 16, 2009.

Petty Officer 3rd Class Tony Jackson calibrates an oscilloscope.

U.S. Navy Petty Officer 3rd Class Tony Jackson calibrates an oscilloscope in the aircraft intermediate maintenance department calibration laboratory aboard the aircraft carrier USS Nimitz (CVN 68) while underway in the Pacific Ocean conducting flight deck certification after completing a six-month planned incremental availability on Jan. 16, 2009.

Photo Gallery