Action of 13 June 1898 decided to withdraw. At the outbreak of the Spanish–American War Cienfuegos was a strategically important port due to its facilities and good communications with Havana. Some prewar plans recommended its prompt capture, but instead it was blockaded, along with some other important ports of the southern coast of Cuba such as Santiago de Cuba and Manzanillo. The most powerful Spanish naval units of the island, meanwhile, had been gathered in Santiago, and submarine defenses consisting mainly of torpedoes had been installed in the major ports of Havana, Cienfuegos, Santiago and San Juan de Puerto Rico. The naval units based in
USS Santiago de Cuba (1861) USS Santiago de Cuba (1861) USS "Santiago de Cuba" (1861) was a brig acquired by the Union Navy during the first year of the American Civil War. She was outfitted as a gunboat with powerful 20-pounder rifled guns and 32-pounder cannon and was assigned to the Union blockade of the Confederate States of America. USS "Santiago de Cuba" was a wooden, brigantine-rigged, side-wheel steamship built in 1861 at Brooklyn, New York. She was purchased by the Navy on 6 September 1861 at New York City; and was commissioned at the New York Navy Yard on 5 November 1861, Commander Daniel