Petty Officer 3rd Class Petty Officer Patrick Murphy, a crew member aboard the Boston-based 270-foot Coast Guard Cutter Escanaba, participates in an exercise aboard the HMCS Preserver (AR-8) during UNITAS in the Atlantic Ocean Wednesday, Sept. 26, 2012. The crew aboard the Escanaba is participating in UNITAS, which is designed to train each naval force in a variety of maritime scenarios with each operating as a component of a multinational force providing the maximum opportunity to improve interoperability.