160514-N-UD469-027 BANGOR, Wash. (May 14, 2016) The Ohio-class ballistic-missile submarine USS Alabama (SSBN 731) returns to Naval Base Kitsap-Bangor following a routine strategic deterrent patrol. Alabama is one of eight ballistic-missile submarines stationed at the base providing the most survivable leg of the strategic deterrence triad for the United States. (U.S. Navy photo by Mass Communication Specialist 2nd Class Amanda R. Gray/Released)