Spanish-American War, 1898-1899.
After the sinking of armored cruiser Maine in Havana harbor 15 February 1898, Miantonomoh recommissioned 10 March 1898, Captain Mortimer L. Johnson in command. On 21 April, the United States and Spain severed diplomatic ties, leading to the Spanish-American War. The following day, President William McKinley ordered Rear Admiral William T. Sampson to blockade ports on the northern coast of Cuba.
After fitting out at Charleston, S.C., Miantonomoh joined the blockading force 5 May to serve until the blockade was lifted 14 August, the day after hostilities ceased. Miantonomoh returned to Charleston 29 August and to Philadelphia 1 October. She decommissioned at League Island 8 March 1899.
