Coup Atlas Research Database
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10112111946AttemptedMilitary coup

Venezuela, 1946 — military coup attempt

Venezuela (VEN)South America, AmericasDecember 11, 1946

Event Summary

On 11 December 1946 military plotters made another failed attempt against Venezuela's Revolutionary Government Junta under Romulo Betancourt, weeks after Accion Democratica's crushing victory in the 27 October 1946 Constituent Assembly election confirmed the party's dominance. The election result, roughly 79 percent for AD, hardened the opposition of conservative, clerical, and displaced medinista military sectors who saw no electoral path against the adecos, and 1946 saw repeated conspiracies inside the officer corps, including plotting by Jesus Maria Castro Leon. The December attempt was suppressed and the junta continued its program, promulgating the new constitution in July 1947 and holding the December 1947 presidential election won by Romulo Gallegos.

The military finally moved successfully against the elected AD government in November 1948, ending the trienio.

Researched Details

Researched

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

Target identified in Coup Atlas research: Junta president Romulo Betancourt survived the attempt unharmed and the junta remained in power
RESEARCHED NAME
Key figures
Romulo Betancourt (junta president, target)
Carlos Delgado Chalbaud (defense minister)
Jesus Maria Castro Leon (officer conspiring against the regime in 1946)

Sources

Officer Jesus Maria Castro Leon is recorded in a U.S. government profile as having conspired against the Betancourt AD regime in 1946.
SOURCE REVIEWED U.S. State Department, FRUS 1958 to 1960 vol. V supplement open source ↗
AD's wide margins, 79 percent in the 1946 Constituent Assembly vote and 73 percent in 1947, emboldened its program and engendered widespread hostility from business, the Roman Catholic Church, and conservative opposition enlisted through COPEI.
SOURCE REVIEWED GlobalSecurity, Venezuela History, The Transition to Democratic Rule open source ↗
The Betancourt led junta guided the writing of a new constitution signed into law on 5 July 1947 and national elections on 14 December 1947 that brought Romulo Gallegos to office.
SOURCE REVIEWED Encyclopedia of Latin American History and Culture (Encyclopedia.com) open source ↗
The 1947 general election government of Gallegos was removed shortly afterward in the 1948 Venezuelan coup, ending the trienio period begun by the 1945 coup.
SOURCE REVIEWED Wikipedia, El Trienio Adeco open source ↗

Editorial Note

As with the September 1946 attempt, discrete documentation of the 11 December 1946 event is thin in accessible English sources; the entry anchors the verified 1946 conspiracy wave and junta context. Pairs with the Venezuela 1946-09-16 attempt and links forward to the 1948 coup record.

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
10112111946

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

Outcome and Target

Coup Atlas research identifies the target as: Junta president Romulo Betancourt survived the attempt unharmed and the junta remained in power.

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

The Christian Science Monitor

“Venezuela’s Left Government Still Stands Despite Uprising,” by Robert K. Shellaby, December 12, 1946

New York Herald Tribune

“Venezuela Ends 12-Hour Revolt as Rebels Flee,” December 12, 1946

New York Times

“Venezuela Quells Revolt by Army; Rebels Seize Planes, Gun Capital, December 12, 1946

The Washington Post

“Rebels Attempt to Seize Reins in Venezuela,” by Sam Dawson, December 21, 1946

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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