170517-N-RX668-020 NEWPORT, R.I. (May 17, 2017) Lewis Duncan, provost at U.S. Naval War College (NWC), gives opening remarks during a Freedom of Navigation and the Law of the Sea Workshop held at NWC. The purpose of the workshop is to develop a better understanding of international law concerning freedom of the seas, especially freedom of navigation and overflight for warships and military aircraft. (U.S. Navy photo by Mass Communication Specialist 2nd Class Jess Lewis/Released)