USS Francis Scott Key (SSBN-657)

USS Francis Scott Key (SSBN-657)

USS Francis Scott Key (SSBN-657), a Benjamin Franklin-class ballistic missile submarine, was the only ship of the United States Navy to be named for Francis Scott Key (1779–1843), an American lawyer, author, and amateur poet who wrote the poem "The Defense of Fort McHenry", which became the words to the United States' national anthem, "The Star-Spangled Banner".