A U.S. Marine Corps C-130 Hercules aircraft leads a formation of F/A-18C Hornet strike fighters and A/V-8B Harrier jets over the aircraft carrier USS George Washington (CVN 73) in the East Sea of Korea, July 27, 2010. The Republic of Korea and the United States are conducting the combined alliance maritime and air readiness exercise "Invincible Spirit" in the seas east of the Korean peninsula from July 25 - 28, 2010. This is the first in a series of joint military exercises that will occur over the coming months in the East and West Seas. (Xinhua/Reuters)