- Mine countermeasures ship USS Patriot (MCM 7) pulls into port at Marine Corps Air Station Iwakuni, becoming the first U.S. Navy ship to utilize the air base’s recently built port and harbor facility. While in Iwakuni, crew members of the Sasebo, Japan-based ship will have an opportunity to interact with the local population and Iwakuni-based Japanese Self Defense Force personnel. U.S. Navy Photo by Mass Communication Specialist 2nd Class Adam R. Sasebo, Japan-based minesweepers USS Guardian (MCM 5) and USS Patriot (MCM 7) successfully completed mine sweeping operations with the Republic of Korea Navy (ROKN) as part of Foal Eagle 2007 on March 30.