160311-N-HS305-011 WATERS NEAR GUAM (March 11, 2016) The Los Angeles-class attack submarine USS Chicago (SSN 721) sails on the surface in a multi-ship formation during Multi Sail 2016. Multi Sail 2016 is a bilateral training exercise aimed at interoperability between the U.S. and Japanese forces. This exercise builds interoperability and benefits from realistic, shared training enhancing our ability to work together. (U.S. Navy photo by Lt.j.g. Jonathan Peterson/Released)