AT SEA - AUGUST 14: In this handout photo provided by the U.S. Navy, USS Nimitz (CVN 68), USS Kitty Hawk (CV 63) and USS John C. Stennis (CVN 74) Carrier Strike Groups transit in formation during a joint photo exercise (PHOTOEX) during exercise Valiant Shield 2007 on August 14, 2007 in the Pacific Ocean, At Sea. The aerial formation consists of aircraft from the carrier strike groups as well as Air Force aircraft. The 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. (Photo by Hana'lei Shimana/U.S. Navy via Getty Images)
