U.S. Navy and South Korean ships sail in a 13-ship formation led by the Los Angeles-class attack submarine USS Tuscon (SSN 770) on July 26, 2010 in the East Sea off of the Korean peninsula. The United States and South Korea 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. (EDITORS NOTE: Image has been reviewed by U.S. Military prior to transmission.) U.S. Navy /Specialist 3rd Class Adam K. Thomas
