EAST CHINA SEA (Dec. 6, 2010) Aerographer's Mate 2nd Class Jason Fisher, left, briefs Japan Maritime Self-Defense Force officers on the capabilities a remote environmental monitoring unit (REMUS 100) aboard the amphibious transport dock ship USS Denver (LPD 9) during Keen Sword 2011. The REMUS 100 is an unmanned undersea vehicle used for mine detection. Keen Sword is the 10th joint training exercise since 1986 involving Japan Maritime Self-Defense Force and the U.S. military. (U.S. Navy photo by Mass Communication Specialist 3rd Class Bryan Blair/Released)
