Arctic Symposium (IMAGE) Office of Naval Research Caption Rear Adm. Mat Winter, chief of naval research, paints a portrait of naval operations in a challenging Arctic environment at the Sixth Symposium on the Impacts of an Ice-Diminishing Arctic on Naval and Maritime Operations held at the Naval Heritage Center in Washington, D.C. Credit (US Navy photo by John F. Williams/Released) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.