Coup Atlas Research Database
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04007261953AttemptedDissident coup

Cuba, 1953 — dissident coup attempt

Cuba (CUB)Caribbean, AmericasJuly 26, 1953

Event Summary

On 26 July 1953 about 135 to 160 young revolutionaries led by Fidel Castro attacked the Moncada Barracks, Cuba's second largest military garrison, in Santiago de Cuba, with a simultaneous strike on the Carlos Manuel de Cespedes barracks at Bayamo led by Raul Martinez Araras. The plan was to seize the arsenal, arm supporters, use the garrison's radio to spread confusion, and spark a national insurrection against Fulgencio Batista, who had seized power in a coup on 10 March 1952. Timed for the morning after Santiago's carnival, the assault unraveled almost immediately when the rebels lost surprise against a far larger and better armed garrison; the attack failed within hours.

Many attackers were captured and tortured or summarily executed, while Castro and others fled and were caught within days. At his trial Castro delivered his History Will Absolve Me defense and was sentenced to 15 years, but was amnestied in 1955, and the date gave its name to his 26th of July Movement that toppled Batista on 1 January 1959.

Researched Details

Researched

Independent research, added record by record. Hover any label for what it means.

Target identified in Coup Atlas research: Fulgencio Batista survived the Moncada attack unharmed and ruled until fleeing on 1 January 1959
RESEARCHED NAME
Key figures
Fulgencio Batista (Cuban ruler, target)
Fidel Castro (leader of the assault)
Raul Castro (participant)
Raul Martinez Araras (led the simultaneous Bayamo attack)

Sources

On 26 July 1953 the Moncada Barracks in Santiago de Cuba was the site of an armed attack by a small group of revolutionaries led by Fidel Castro, with a simultaneous attack on the Carlos M. de Cespedes barracks in Bayamo; the attack failed and the surviving revolutionaries were imprisoned.
SOURCE REVIEWED Wikipedia, Attack on the Moncada Barracks open source ↗
At 5:15 am Castro led a group of about 136 rebels, with an additional 24 intending to take the Bayamo barracks, against the garrison commanded by Colonel Alberto del Rio Chaviano, planning to seize the weapons and use the army communications to spread false messages and mobilize the public against Batista.
SOURCE REVIEWED Wikipedia, Attack on the Moncada Barracks open source ↗
Castro's goal was to rouse the people to insurgency, hoping the army would join the people and force Batista from power, and even if it failed he noted it would be heroic and have symbolic value.
SOURCE REVIEWED PBS American Experience, Castro's Failed Coup open source ↗
The date 26 July was adopted by Castro as the name for his revolutionary movement, Movimiento 26 Julio, which eventually toppled the dictatorship of Fulgencio Batista on 1 January 1959, and the attack is widely accepted as the beginning of the Cuban Revolution.
SOURCE REVIEWED Wikipedia, Attack on the Moncada Barracks open source ↗

Editorial Note

Exact date match, extensively documented. Dataset codes it a dissident coup, reflecting the assault by an armed civilian movement. Anchors the Cuba arc leading to Batista's flight on 1 January 1959 in the dataset.

Cross-Reference

Only one dataset carries it. One of the three reference datasets we check against carries this event; the others do not list it. That is not a contradiction — the datasets cover different periods and use different thresholds — but it means the record has had less outside corroboration.

Identifiers for finding this same event in the other datasets:

Cline Center id
04007261953

How the match is made is described in crossref-report.md.

Outcome and Target

Coup Atlas research identifies the target as: Fulgencio Batista survived the Moncada attack unharmed and ruled until fleeing on 1 January 1959.

Baseline coding: Coup attempt failed to remove the incumbent. Recorded leader fate: remained in office; not physically harmed. The baseline file does not name individual targets; researched names are kept in a separate layer.

Baseline Dataset Citation

Cline Center Coup d’État Project Dataset, v2.2.2
Peyton, Buddy, Joseph Bajjalieh, Michael Martin, and Andrea Gerald. 2026. Cline Center Coup d’État Project Dataset. Cline Center for Advanced Social Research. V.2.2.2. February 17. University of Illinois Urbana-Champaign. doi: 10.13012/B2IDB-9651987_V10
⚑ This citation establishes the coded baseline record; use the claim-level sources above for the researched narrative.

Baseline Source-Document Entries

Wikipedia

New York Times

“YOUTH SAYS CASTRO NOW HAS 1,000 MEN,” October 28, 1957

Chicago Daily Tribune

“Batista Declares Martial Law in Cuba After Revolt,” July 28, 1953

This is the citation trail carried by the baseline dataset, grouped by outlet and rejoined from the line-wrapped original. Coup Atlas has not independently re-checked every document; read the original before citing a specific claim. URLs the import damaged beyond safe repair are shown as plain text and listed in citations-report.md. How this list is built →

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