Rear Adm. James Kelly assumed command of the U.S. Naval Forces in Japan today, replacing Rear Adm. Frederic Ruehe. The change of command ceremony was held aboard the USS Kitty Hawk aircraft carrier at the Japanese port of Yokosuka, just south of Tokyo, where the U.S. 7th Fleet is based. Kelly becomes the second-most senior officer for the U.S. Navy in Japan following the 7th Fleet commander, Vice Adm. Jonathan Greenert. The 7th Fleet is the largest in the Navy, and is the only fleet that has its home port outside of the United States.