Coup Atlas Research Database
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10010111961AttemptedMilitary coup

Colombia, 1961 — military coup attempt

Colombia (COL)South America, AmericasOctober 11, 1961

Event Summary

The dataset records an attempted military coup in Colombia on 11 October 1961, during the National Front power-sharing government of Liberal President Alberto Lleras Camargo, the first president under the Liberal Conservative alternation agreement designed to end the partisan bloodletting of La Violencia. The National Front era brought relative stability after the military junta that had followed Rojas Pinilla's fall, but it faced continuing rural violence from bandit and emerging guerrilla groups, discontent from the excluded Rojas Pinilla movement, and pressure from officers uneasy at the civilian arrangement. Any coup attempt in October 1961 came within that context and did not unseat Lleras Camargo, who completed his term and handed power in 1962 to the Conservative Guillermo Leon Valencia under the alternation pact, continuing the National Front sequence that held until 1974.

Researched Details

Researched

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

Target identified in Coup Atlas research: President Alberto Lleras Camargo survived and completed his National Front term, handing power to a Conservative successor in 1962
RESEARCHED NAME
Key figures
Alberto Lleras Camargo (president of Colombia, target)
Dissident officers and excluded political factions (plotters)

Sources

Alberto Lleras Camargo was the first National Front president of Colombia, taking office in 1958 under the Liberal Conservative power-sharing agreement.
SOURCE REVIEWED Wikipedia, Alberto Lleras Camargo open source ↗
The National Front alternated Liberal and Conservative presidencies from 1958 to 1974, a power-sharing arrangement designed to end the partisan violence of La Violencia.
SOURCE REVIEWED Wikipedia, National Front (Colombia) open source ↗
The National Front period faced continuing rural violence and the emergence of guerrilla groups, as well as opposition from the excluded movement of former dictator Rojas Pinilla.
SOURCE REVIEWED Wikipedia, National Front (Colombia) open source ↗
Lleras Camargo completed his term and handed power in 1962 to the Conservative Guillermo Leon Valencia under the alternation pact.
SOURCE REVIEWED Wikipedia, National Front (Colombia) open source ↗

Editorial Note

No discrete documentation of a coup attempt precisely on 11 October 1961 was found in accessible English sources this session; the entry records the dataset's coding and the verified context of the National Front government under Lleras Camargo, with plotter identity for this specific date unconfirmed, flagged. Follows the Colombia 1958 transitional record in batch 60.

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
10010111961

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

Outcome and Target

Coup Atlas research identifies the target as: President Alberto Lleras Camargo survived and completed his National Front term, handing power to a Conservative successor in 1962.

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

Powell and Thyne

Named in the baseline source document; no article citation was recorded.

New York Times

“COLOMBIA MUTINY BRINGS ARMY RULE,” October 12, 1961

Chicago Tribune

“QUELL REVOLT BY SOLDIERS IN COLOMBIA,” October 12, 1961

Hartford Courant

“Colombia Nips Revolt, Decrees State of Siege,” October 12, 1961

Washington Post

“Colombia Snuffs Out Revolt without Shot,” October 12, 1961

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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