Cuba’s military is both larger and weaker than it might at first appear.

On paper, the island fields tanks, fighter aircraft, missile batteries and more than a million militia members. In practice, much of that arsenal depends on aging Soviet-era hardware, chronic fuel shortages and a strategy built less around defeating an invader than surviving one.

Cuba’s Fuerzas Armadas Revolucionarias, Revolutionary Armed Forces, function less as a modern expeditionary military than as a defensive system designed to preserve the regime and complicate any foreign attempts at intervention.

Subordinate to the Ministry of the Revolutionary Armed Forces and ultimately the Communist Party, the military follows a doctrine known as Guerra de Todo el Pueblo — War of all the people — emphasizing territorial defense, guerrilla warfare, popular mobilization and making any invasion costly through asymmetric resistance.

Once considered among Latin America’s most capable militaries, particularly during Cuban deployments to Africa during the Cold War, the military has steadily declined since the collapse of Soviet support in the early 1990s. Analysts today describe an institution constrained by shortages of fuel and spare parts and increasingly dependent on domestic improvisation — modifying, repurposing and cannibalizing older systems to keep them operational.

Personnel and mobilization

Cuba maintains an active-duty force estimated at roughly 45,000 to 50,000 personnel, though some broader estimates place army-related manpower significantly higher depending on whether support and internal-security components are included. Ground forces are generally estimated between 35,000 and 90,000 troops, while the navy is believed to field 3,000 to 5,000 personnel and the Air Defense Force approximately 4,000 to 10,000.

The backbone of Cuba’s defense strategy, however, lies not in its professional military but in its reserve and militia system.

READ MORE: If the U.S. attacks Cuba: Experts see swift military strike, uncertain fallout

The forces maintain approximately 39,000 to 40,000 reservists, supplemented by an extensive network of paramilitary organizations and territorial militias. Chief among them is the Territorial Troops Militia, Milicias de Tropas Territoriales, estimated at 1.15 million members. These part-time civilian formations are designed to provide decentralized local resistance, guerrilla operations and logistical support in the event of foreign attack. Additional organizations, including the Youth Labor Army, Ejército Juvenil del Trabajo, and civil defense structures provide further mobilization and internal-control capabilities.

Ground forces: A rolling Soviet museum

The Revolutionary Army remains the military’s largest branch, though expert observers often describe it as a force built around aging Soviet armor and improvised domestic adaptations.

Cuba is estimated to possess between approximately 200 and 400 tanks, primarily T-54, T-55 and T-62 models acquired during the Cold War. Analysts caution, however, that many of these vehicles are believed to be in storage, maintained at low readiness or cannibalized for parts.

The armored inventory is broader than its tank force alone.

The armed forces reportedly maintain more than 1,200 light armored vehicles, while some broader inventories place total armored and transport stockpiles in the range of several thousand. These include BMP-1 infantry fighting vehicles and BTR-50, BTR-60 and BTR-152 armored personnel carriers, many modified domestically to carry heavier guns or anti-aircraft weapons. Such improvised upgrades have led some analysts to describe portions of Cuba’s armor fleet as “Frankenstein” vehicles — platforms assembled through adaptation rather than replacement.

Artillery remains substantial on paper.

The army fields Soviet-designed systems including BM-21 Grad multiple rocket launchers, 2S1 Gvozdika and 2S3 Akatsiya self-propelled howitzers, as well as large inventories of towed artillery such as the 122mm D-30. Cuba has also developed improvised mobile artillery systems, mounting guns onto truck beds and tracked chassis to create locally modified weapons such as the Jupiter and AAP series. Estimates place self-propelled artillery at roughly 140 systems and multiple-launch rocket systems near 200, alongside hundreds of towed pieces.

Despite those inventories, analysts say the central challenge facing the army is readiness rather than quantity.

Fuel shortages, maintenance problems and transportation constraints limit mobility, reinforcing the military’s emphasis on static defense and decentralized resistance rather than rapid offensive maneuver.

Air force and air defenses

The Revolutionary Air Force and Air Defense Force are widely regarded as the most degraded branch of Cuba’s military.

On paper, Cuba still possesses Soviet-era MiG-21, MiG-23 and MiG-29 fighters. But most defense analysts believe only a fraction remain operational. Estimates suggest from none to 20 combat aircraft may be flight-capable at any given time, with some assessments placing the number of operational fighters as low as none to 11. Maintenance limitations, spare-parts shortages and fuel scarcity have sharply constrained pilot training and mission execution.

As a result, flight training increasingly relies on simulators and L-39 Albatros trainers rather than sustained operational flying.

The air force also operates limited transport and rotary-wing assets, including Antonov An-2, An-26 and An-32 aircraft, occasional Ilyushin transports, and approximately 13 helicopters, including Mi-8, Mi-17, Mi-14 and Mi-24 variants used for transport, naval support and utility missions.

Cuba’s principal emphasis in the air domain is defensive.

The military maintains an integrated network of surface-to-air missiles, radar systems and anti-aircraft guns, centered on Soviet-era S-125 Pechora SA-3 missile batteries. Some reports estimate Cuba has 144 launchers, and open-source intelligence suggests portions of the system received Belarusian upgrades in recent years to remain functional. The broader network also includes older SA-2, SA-6 and SA-8 systems, along with mobile guns and man-portable air defenses.

Even so, analysts generally regard Cuba’s air-defense network as technologically outdated and increasingly difficult to sustain.

Navy: Coastal defense, not seagoing power

The Revolutionary Navy, Marina de Guerra Revolucionaria, has evolved largely into a coastal-defense and maritime-security force.

Cuba no longer maintains a meaningful blue-water navy, modern frigates or an operational submarine fleet comparable to Cold War levels. Its naval inventory is estimated at 33 vessels, most devoted to coastal patrol, anti-smuggling missions and limited territorial defense.

The fleet’s most prominent ships are two Río Damuji-class vessels, unusual platforms converted from Spanish commercial fishing trawlers built in the early 1970s and retrofitted with Soviet weapons, including P-15 Termit Styx/Silkworm anti-ship missiles and naval guns. The navy also fields six Osa II missile boats, Pauk-class corvettes, minesweepers and numerous smaller patrol and support craft.

Submarine capability is minimal.

Cuba’s domestically developed Delfín-class midget submarine, designed for coastal ambush operations, reportedly remains inactive or of uncertain operational status after years in port. Earlier Soviet submarines have long since been retired.

Naval aviation remains limited as well, relying primarily on Mi-14 anti-submarine helicopters and small support assets.

Newer capabilities: drones, asymmetric warfare

Where modernization has occurred, it has tended to favor low-cost asymmetric systems rather than conventional power projection.

Since 2023, intelligence and defense reports suggest Cuba has acquired more than 300 drones from Iranian and Russian suppliers. These systems are believed to provide localized reconnaissance, surveillance and limited harassment or strike capability rather than strategic offensive power. Analysts note many are smaller tactical platforms more suited for internal security and battlefield observation than sustained military campaigns.

The overall result is a military that remains large on paper but increasingly dependent on asymmetry.

Its strengths lie in manpower, local terrain familiarity, decentralized mobilization and regime-survival doctrine. Its weaknesses include aging equipment, logistics shortfalls, fuel scarcity and limited modernization. The Revolutionary Armed Forces are designed less to defeat a superior power outright than to endure, disperse and make intervention costly.

Sources: This assessment draws on multiple open-source defense and security analyses, including Global Firepower 2026, the International Institute for Strategic Studies (IISS) and related FAR inventories, AS USA military intelligence reports, Washington Examiner strategic defense analyses, and GlobalMilitary.net.

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