CHINHAE, U.S. 7th Fleet (Nov. 21, 2009) - Mine counter-measures ships USS Guardian (MCM 5) and USS Patriot (MCM 7) are moored in the port of Chinhae for Exercise Clear Horizon. Clear Horizon, an annual exercise conducted with the Republic of Korea Navy, is one of the largest, international, mine counter-measures exercises in the world. (U.S. Navy photo by Mass Communication Specialist 1st Class Richard Doolin)