USS RONALD REAGAN (June 19, 2006) - The sun sets on the flight deck of USS Ronald Reagan (CVN 76) as a plane captain cleans the canopy of an EA-6B Prowler assigned to Tactical Electronic Warfare Squadron One Three Nine (VAQ-139). The Ronald Reagan Carrier Strike Group is currently participating in Valiant Shield 2006, a major military exercise off the coast of Guam involving 28 naval vessels including three carrier strike groups. Approximately 290 aircraft and more than 20, service members from the Navy, Army, Air Force, Marine Corps and U.S. Coast Guard are taking part in the exercise. Official U.S. Navy photo by Photographer's Mate 3rd Class Kevin S. O'Brien.