The Cuban Revolutionary Armed Forces (Spanish: Fuerzas Armadas Revolucionarias; FAR) are the military forces of Cuba. They include Revolutionary Army, Revolutionary Navy, Revolutionary Air and Air Defense Force, and other paramilitary bodies including the Territorial Troops Militia (Milicias de Tropas Territoriales – MTT), Youth Labor Army (Ejército Juvenil del Trabajo – EJT), and the Defense and Production Brigades (Brigadas de Producción y Defensa – BPD), plus the Civil Defense Organization (Defensa Civil de Cuba – DCC) and the National Reserves Institution (Instituto Nacional de las Reservas Estatales – INRE). All these groups are subordinated to the Ministry of the Revolutionary Armed Forces (Ministro de las Fuerzas Armadas Revolucionarias – MINFAR).

The armed forces have long been the most powerful institution in Cuba. The military manages many enterprises in key economic sectors representing about 4% of the Cuban economy. The military has also served as former Cuban Communist Party First Secretary, as well as former President of Cuba, Raúl Castro's base. In numerous speeches, Raúl Castro emphasized the military's role as a "people's partner".

Cuban Revolutionary Army (Ejército Revolucionario)
The Central Intelligence Agency wrote in May 1979 that when "the economy took a downturn in 1970, the Castro regime, partly at Soviet urging, reduced its forces by some 60 per cent, eventually freeing more than 150,000 people for full-time civilian employment. All branches of the armed services except the Air Force were affected noticeably. The Air Defence Force shrank from six brigades and 24 occupied SA-2 surface-to-air missile sites to three brigades and 18 sites, leaving eastern Cuba unprotected by surface-to-air missiles. The Navy lost a number of radar surveillance posts, again to the detriment of eastern Cuba. The Army was more than halved in size and reorganised." (PA79-10173D)

In 1984, according to Jane's Military Review, there were three major geographical commands, Western, Central, and Eastern. There were a reported 130,000 all ranks, and each command was garrisoned by an army comprising a single armored division, a mechanized division, and a corps of three infantry divisions, though the Eastern Command had two corps totaling six divisions. There was also an independent military region, with a single infantry division, which garrisoned the Isle of Youth.

A U.S. Defense Intelligence Agency assessment in the first half of 1998 said that the army's armor and artillery units were at low readiness levels due to 'severely reduced' training, generally incapable of mounting effective operations above the battalion level, and that equipment was mostly in storage and unavailable at short notice. The same report said that Cuban special operations forces continue to train but on a smaller scale than beforehand, and that while the lack of replacement parts for its existing equipment and the current severe shortage of fuel were increasingly affecting operational capabilities, Cuba remained able to offer considerable resistance to any regional power.

Cuban Revolutionary Air and Air Defense Force ( Defensa Anti-Aérea y Fuerza Aérea Revolucionaria)
The Cuban Revolutionary Air and Air Defence Force (DAAFAR) was used in the 1980s with the help of the Soviet Union to be able to project power abroad, especially in Africa. During that time Cuba sent jet fighters and transports for deployment in conflict zones such as Angola and Ethiopia.

In 1990, Cuba's Air Force was the best equipped in Latin America. In all, the modern Cuban Air Force had approximately 230 fixed-wing aircraft. Although there is no exact figure available, Western analysts estimate that at least 130 (with only 25 operational) of these planes are still in service spread out among the thirteen military airbases on the island.

In 1996, fighters from the DAAFAR shot down two Cessna aircraft based in Florida which were incorrectly suspected of dropping leaflets into Cuban airspace. The air force was criticised for not giving the pilots of the aircraft options other than being shot down. One aircraft escaped.

In 1998, according to the same DIA report mentioned above, the air force had "fewer than 24 operational Mikoyan-Gurevich (MiG) fighters; pilot training barely adequate to maintain proficiency; a declining number of fighter sorties, surface-to-air missiles and anti-aircraft guns to respond to attacking air forces."

By 2007 the International Institute for Strategic Studies assessed the force as 8,000 strong with 41 combat capable aircraft and a further 188 stored. DAAFAR is known now to have acquired another MiG-29 and a few MiG-23s, giving it 58 combat aircraft in active service. These are listed as 6 MiG-29s, 40 MiG-23s, and 12 MiG-21s. IISS also estimated DAAFAR had 12 operational transport aircraft, plus trainers which include 8 L-39C, and helicopters, mainly Mil Mi-8, Mil Mi-17, and Mil Mi-24 Hind. Raúl Castro ordered in 2010 that all MiG-29 pilots had to have full training, they now have from 200–250 hours of flight annually together with real dogfight training and exercises. Up to 20 MiG-23 units also have this kind of training but the other 16 MiG-23 units spend more time in simulators than real flight. MiG-21 units have limited time in these training exercises and spend more time in simulators and maintain their skills flying with Aerogaviota, the commercial brand of the air force.

Cuban Revolutionary Navy (Marina de Guerra Revolucionaria)
In 1988, the Cuban Navy boasted 12,000 men, three submarines, two modern guided-missile frigates, one intelligence vessel, and a large number of patrol craft and minesweepers. However, most of the Soviet-made vessels have been decommissioned or sunk to make reefs. By 2007, the Cuban Navy was assessed as being 3,000 strong (including up to 550+ Navy Infantry) by the IISS with six Osa-II missile boats and one Pauk-class corvette. The Cuban Navy also includes a small marine battalion called the Desembarco de Granma. It once numbered 550 men, though its present size is not known.

After the old Soviet submarines were put out of service, Cuba searched for help from North Korea's experience in midget submarines. North Korean defectors claimed to have seen Cubans in mid to late 1990s in a secret submarine base. Years later, a single picture became public of a small black native submarine in Havana harbor. It is rumored to be called 'Delfin' and is to be armed with two torpedoes. Only a single boat is in service and the design appears original, even if influenced both by North Korea and Soviet designs.

The Cuban Navy rebuilt one, large ex-Spanish Rio Damuji fishing boat. BP-390 is now armed with two C-201W missiles, one twin 57 mm gun mount, two twin 25 mm gun mounts and on 14.5 mm machine gun. This vessel is larger than the Koni class, and it is used as a helicopter carrier patrol vessel. A second unit (BP-391) was converted and entered service in 2016.

The Cuban Navy today operates its own missile systems, the made-in-Cuba Bandera (a copy of the dated Styx Soviet missiles) and Remulgadas anti-ship missile systems, as well as the nationally produced Frontera self-propelled coastal defence multiple rocket launcher. The navy's principal threats are drug smuggling and illegal immigration. The country's geographical position and limited naval presence has enabled traffickers to utilise Cuban territorial waters and airspace.

The Cuban Navy's air wing is an ASW helicopter operator only and is equipped with 2 Mi-14 Haze helicopters.