U.S. Navy sailors assigned to Mobile Diving Salvage

U.S. Navy sailors assigned to Mobile Diving Salvage Unit 2 talk about the capabilities of unmanned underwater vehicles at a static display during Exercise Frontier Sentinel 2012, May 1, 2012, in Sydney, Nova Scotia. Exercise Frontier Sentinel is a combined interagency exercise involving Joint Task Force Atlantic, the U.S. Coast Guard and the U.S. Navy Fleet Forces Command. The exercise is designed to continue to develop and validate the existing plans, treaties and standard operation procedures for a bilateral response to maritime homeland defense and security threats.