The Blue Crew of the Ohio-class ballistic-missile submarine USS Alabama (SSBN 731) returns home to Naval Base Kitsap-Bangor, Wash., Sep. 5, 2017, following a routine strategic deterrent patrol. Alabama is one of eight ballistic-missile submarines stationed at Naval Base Kitsap-Bangor, 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)