Frontier Sentinel Official Meeting

U.S. Navy Commander Paul Oosterling of the Naval Oceanography Mine Warfare Center, discusses the usage of unmanned underwater vessels with Terry Beyer, a representative for Congresswoman Carol Shea-Porter, at Coast Guard Station Portsmouth, N.H., Wed. June 11, 2008.
The annual maritime homeland security exercise, Frontier Sentinel, is taking place in the Northwestern Atlantic. The interagency exercise involves the Canadian and U.S. Naives and the United States Coast Guard, as well as numerous other federal, state and local agencies in the detection, assessment and response to a maritime security threat.
U.S. Coast Guard photo by Petty Officer Seth Johnson