150327-N-NI474-066 WATERS NEAR GUAM (March 27, 2015) U.S. Navy and Japan Maritime Self-Defense Force ships are underway in formation during Multi-Sail 2015. Multi-Sail is an annual Destroyer Squadron (DESRON) 15 exercise designed to assess combat systems, improve teamwork and increase warfighting capabilities in the U.S. 7th Fleet area of responsibility. The Japan Maritime Self-Defense Force is participating in Multi-Sail for the first time. (U.S. Navy photo by Mass Communication Specialist 2nd Class Daniel M. Young/Released)