Cuban Revolutionary Navy

The Cuban Revolutionary Navy, the Marina de Guerra Revolucionaria, is the smallest branch of Cuba's Revolutionary Armed Forces and functions as a coastal denial force rather than a seagoing fleet. With an estimated three to five thousand personnel and a 3,700-kilometre coastline to watch, its mission is the defence of territorial waters and approaches against a far superior adversary, supported by shore-based anti-ship missiles, mines and dispersed small craft rather than by contesting the sea.

The fleet reflects a Soviet inheritance that has never been replaced. Its most capable units are two Rio Damuji-class frigates, improvised in Cuban yards from Spanish-built fishing trawlers and fitted with anti-ship missiles, guns and a helicopter deck, a solution born of necessity that gives the navy its only ships able to patrol beyond the immediate coast. Combat power otherwise rests on a single Pauk II-class corvette configured for anti-submarine work, six Osa II-class missile boats dating from Soviet transfers, and a screen of Zhuk and Stenka patrol craft. Mine warfare is handled by Sonya and Yevgenya-class minesweepers, and the order of battle also includes a Delfin-class midget submarine and an intelligence collection vessel, both of uncertain availability.

The collapse of Soviet subsidies at the start of the 1990s ended the navy as a conventional force. Foxtrot-class submarines, Koni-class frigates and most of the missile boat force were laid up and cannibalised for parts, and no significant warship has been acquired since. What survived did so through domestic improvisation: hull conversions, locally maintained Soviet weapons and the Bandera coastal missile, a Cuban adaptation of the Soviet anti-ship missile family mounted on trucks to give a mobile, hard-to-target denial capability along the coast.

Day-to-day maritime security is largely handled outside the navy. The Border Guard Troops, the Tropas Guardafronteras of the Interior Ministry, operate the patrol craft that carry out counter-smuggling, migration interdiction and fisheries enforcement, while the navy concentrates on territorial defence, coastal surveillance and support to the army's coastal artillery and missile units. Chronic fuel shortages, spare parts scarcity and the country's prolonged economic crisis keep the number of genuinely seaworthy hulls well below the paper strength.

Cuba's maritime significance today rests less on its own fleet than on its geography. The island sits astride the approaches to the Gulf of Mexico and the Florida Straits, and its ports remain available to friendly navies: Russian task groups, including the frigate Admiral Gorshkov and the nuclear-powered submarine Kazan, have made high-profile port calls at Havana as a deliberate signal, without any permanent basing arrangement. The navy itself operates almost exclusively within Cuban territorial waters, and its practical role is to complicate any approach to the coast rather than to project force away from it.