MAYPORT, Fla (July 15, 2015) Peruvian Submarine B.A.P. ANTOFAGASTA (SS-32) pulls into Naval Station Mayport for a port visit as part of her deployment. B.A.P. ANTOFAGASTA is part of the Diesel Electric Submarine Initiative (DESI) between the United States and partner nations. DESI is a program designed to train crews and test capabilities in Anti-Submarine Warfare between nuclear-powered and diesel-electric submarines. (U.S. Navy photo by Lt. j. g. Victoria Einbinder/Released)