Coup Atlas Research Database
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14505151973AttemptedMilitary coup

Bolivia, 1973 — military coup attempt

Bolivia (BOL)South America, AmericasMay 15, 1973

Event Summary

The dataset records an attempted military coup in Bolivia on 15 May 1973, during the right-wing military government of Colonel Hugo Banzer, who had seized power in August 1971 by overthrowing the leftist general Juan Jose Torres. Banzer governed in alliance with the traditional Nationalist Revolutionary Movement and the Bolivian Socialist Falange, but his coalition was fractious and his rule was repeatedly challenged by plots from both left and right within Bolivia's notoriously coup prone military. Any coup attempt in May 1973 came within that turbulence and did not unseat Banzer, who broke with his civilian partners in 1974, banned political activity, and ruled as an outright military dictator with United States support until he was forced from power in 1978.

Bolivia's chronic instability, reflected across many entries in the dataset, continued through a rapid succession of military governments before a fragile return to civilian rule.

Researched Details

Researched

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

Target identified in Coup Atlas research: Colonel Hugo Banzer survived the May 1973 plotting and ruled Bolivia until 1978
RESEARCHED NAME
Key figures
Hugo Banzer (president of Bolivia, target)
Dissident military officers (plotters)

Sources

Hugo Banzer seized power in Bolivia in August 1971 by overthrowing Juan Jose Torres and established a right-wing military government.
SOURCE REVIEWED Wikipedia, Hugo Banzer open source ↗
Banzer initially governed in alliance with the Nationalist Revolutionary Movement and the Bolivian Socialist Falange, a fractious coalition subject to plotting.
SOURCE REVIEWED Wikipedia, Hugo Banzer open source ↗
In 1974 Banzer broke with his civilian partners, banned all political activity, and ruled solely with military support.
SOURCE REVIEWED Wikipedia, List of coups and coup attempts by country open source ↗
Banzer ruled Bolivia as a military dictator until he was forced from power in 1978.
SOURCE REVIEWED Wikipedia, Hugo Banzer open source ↗

Editorial Note

No discrete documentation of a coup attempt precisely on 15 May 1973 in Bolivia was found in accessible English sources this session; the entry records the dataset's coding and the verified context of the Banzer government amid Bolivia's chronic military plotting, with plotter identity for this specific date unconfirmed, flagged. Continues the long Bolivia coup run 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
14505151973

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

Outcome and Target

Coup Atlas research identifies the target as: Colonel Hugo Banzer survived the May 1973 plotting and ruled Bolivia until 1978.

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

Luttwak

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

New York Times

“BOLIVIA REPORTS DEATH OF PLOTTER: Says Rightist Was Killed in a Fall After His Arrest Says Rightist Was Killed in a Fall After His Arrest Incident Is Described Launching on SovietTV,” May 16, 1973

Boston Globe

“NEWS IN BRIEF: WORLD,” May 15, 1973

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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