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Sailors assigned to Submarine Learning Facility Norfolk (SLFN) give a demonstration of a submarine training exercise for key leadership of the Brazilian Submarine Force Oct. 27, 2020. SLFN trains officers and enlisted personnel to prepare maritime warfighters for combat and peacetime operations. The annual staff talks between submarine forces was established to foster cooperation through the chief of naval operation’s directed engagement plan. (U.S. Navy photo by Mass Communication Specialist 1st Class Alfred Coffield)