170428-N-UD469-028 PUGET SOUND, Wash. (April 28, 2017) The Ohio-class ballistic-missile submarine USS Alabama (SSBN 731) transits the Hood Canal as the boat returns home to Naval Base Kitsap-Bangor following a routine strategic deterrent patrol. Alabama is 1 of 8 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 1st Class Amanda R. Gray/Released)