Philippine Sea (June 18, 2006) – Aircraft Carriers USS Ronald Reagan (CVN 76), USS Kitty Hawk (CV 63) and USS Abraham Lincoln (CVN 72) sail in formation at the start of Exercise Valiant Shield 2006. Valiant Shield 2006 is the largest joint exercise in recent history. Held in the Guam operating area June 19-23, the exercise includes 28 naval vessels. Nearly 300 aircraft and approximately 22,000 service members from the Navy, Air Force, Marine Corps and Coast Guard are participating in the exercise. U.S. Navy photo by Chief Photographer's Mate Spike Call