Primauguet is a F70 type anti-submarine frigate of the French Marine Nationale. She is the sixth French vessel named after the 15th century captain Hervé de Portzmoguer. She is one of the six anti-submarine frigate made in the same model, as the french frigate Latouche-Tréville.
The French navy doesn't use the term "destroyer" for its ships; hence some large ships, referred to as "frigates", are registered as destroyers.
USS Porter (DDG-78) is an Arleigh Burke-class destroyer in the United States Navy. Porter is the fifth US Navy ship to be named after US Navy officers Commodore David Porter, and his son, Admiral David Dixon Porter. This ship is the 28th destroyer of her class. Porter was the 12th ship of this class to be built at Ingalls Shipbuilding in Pascagoula, Mississippi. She was laid down on 2 December 1996, launched and christened on 12 November 1997, and commissioned 20 March 1999, in Port Canaveral, Florida.