CSS Tennessee was a casemate ironclad ram built for the Confederate Navy during the American Civil War. She served as the flagship of Admiral Franklin Buchanan (who would later be captured in the same ship), commander of the Mobile Squadron, after her commissioning. She was captured in 1864 by the Union Navy during the Battle of Mobile Bay and then participated in the Union's subsequent Siege of Fort Morgan. Tennessee was decommissioned after the war and sold in 1867 for scrap.
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