PACIFIC OCEAN (Aug. 14, 2007) - Overlooking the captain's chair on the bridge aboard Nimitz-class aircraft carrier USS John C. Stennis (CVN 74), USS Antietam (CG 54), USS Preble (DDG 88) and USS O'Kane (DDG 77) transit in formation during a joint photo exercise concluding Valiant Shield 2007. John C. Stennis, Kitty Hawk and Nimitz Carrier Strike Groups are participating in 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 service members from the Navy, Air Force, Marine Corps, and Coast Guard. U.S. Navy photo by Mass Communication Specialist Seaman John Wagner