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(Undated Photo) - USS George Washington (SSBN 598) at sea. USS George Washington would successfully launch first-ever fleet ballistic missile July 20, 1960. The POLARIS A1 test vehicle was developed, designed, and tested by the Special Projects Office (SPO) now called Strategic Systems Programs (SSP). SSP is the Navy command that owns the cradle to grave responsibility for the submarine-launched ballistic missile system and oversees all aspects of research, development, production, logistics, storage, repair, and operational support for the strategic weapon system. (Photo Courtesy: Naval History and Heritage Command/Released)
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