Ships and submarines participating in Rim of the Pacific (RIMPAC) exercise 2012 sail in formation in the waters around the Hawaiian Islands July 27, 2012.
RIMPAC is a U.S. Pacific Command-hosted biennial multinational maritime exercise designed to foster and sustain international cooperation on the security on the world?s oceans. (DoD photo by Chief Mass Communication Specialist Keith Deviney, U.S. Navy/Released). Original public domain image from Flickr