U.S. Navy Petty Officer 2nd Class Alvin M. Warner, gunner for Inshore Boat Unit 42 attached to Naval Coastal Warfare Squadron 4, tests his communication equipment before the squadron performs a demonstration at Naval Amphibious Base Little Creek, Va., May 10, 2006. The squadron's primary mission is anti-terrorism/force protection in harbors and coastal waterways overseas, such as the Persian Gulf and the Horn of Africa. U.S. Navy photo by Petty Officer 3rd Matthew D. Leistikow