ON THE WING A U.S. Air Force B-52 and 16 other Air Force and Navy aircraft fly over USS Kitty Hawk on Aug. 14, 2007, during Valiant Shield 2007, the largest joint exercise in the Pacific this year. Held in the Guam operating area, the exercise includes 30 ships, more than 280 aircraft and more than 20,000 servicemembers from the Navy, Air force, Marine Corps, and Coast Guard. SHARE: Download: Full Size (0.02 MB) Credit: VIRIN: 964865-X-GDY23-466.jpg Photo Gallery