Coup Atlas Research Database
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31509131947ConspiracyDissident coup

Czechoslovakia, 1947 — dissident coup conspiracy

Czechoslovakia (CSK)Eastern Europe, EuropeSeptember 13, 1947

Event Summary

On 10 September 1947 the Czechoslovak public was shocked by the revelation of an assassination attempt on three non-communist ministers, Deputy Prime Minister Petr Zenkl, Foreign Minister Jan Masaryk, and Justice Minister Prokop Drtina, who had been sent parcels containing explosives designed to detonate on opening, in the affair known as the Krcman case. The plot came amid a growing communist-led offensive against the non-communist parties in the coalition, as the Communist Party, controlling the Interior Ministry and the security police, used propaganda and salami tactics to undermine its rivals. The communist interior minister Vaclav Nosek and the communist-dominated police showed a conspicuous lack of interest in investigating, but an inquiry initiated by Justice Minister Drtina traced the parcel bombs to communist officials at the party secretariat in Olomouc.

The Krcman affair became a major point of contention that fed directly into the crisis of February 1948, when the communists seized full control of Czechoslovakia.

Researched Details

Researched

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

Target identified in Coup Atlas research: The non-communist ministers survived the parcel-bomb plot; the affair fed the crisis that led to the communist takeover in February 1948
RESEARCHED NAME
Key figures
Petr Zenkl, Jan Masaryk, Prokop Drtina (targeted non-communist ministers)
Communist Party of Czechoslovakia (organizers of the plot)
Vaclav Nosek (communist interior minister who obstructed the inquiry)

Sources

A telegram from Prague dated 11 September 1947 reported the official announcement of the attempt to assassinate Deputy Prime Minister Zenkl, Foreign Minister Masaryk, and Justice Minister Drtina, who had been sent parcels containing TNT designed to explode on opening.
SOURCE REVIEWED U.S. State Department, FRUS 1947 vol. IV open source ↗
On 10 September 1947 the public was shocked by the revelation of an assassination attempt on non-communist politicians who had received parcel bombs, known as the Krcman affair, and the communist interior minister and police showed a curious lack of interest in the case.
SOURCE REVIEWED City of Prague Museum, February 1948 in Prague open source ↗
The independent investigation initiated by Justice Minister Prokop Drtina proved a connection with the communists at the party secretariat in Olomouc, though interior minister Vaclav Nosek made efforts to thwart it.
SOURCE REVIEWED City of Prague Museum, February 1948 in Prague open source ↗
The Krcman affair became a point of contention that escalated into the February 1948 crisis, when the non-communist ministers resigned and the communists seized undisputed control of the government.
SOURCE REVIEWED Wikipedia, Petr Zenkl open source ↗

Editorial Note

Dataset date 13 September 1947 aligns with the Krcman parcel-bomb affair revealed on 10 September 1947 against non-communist ministers Zenkl, Masaryk, and Drtina. Well documented. Dataset codes it a dissident coup conspiracy. First Czechoslovakia record in the dataset run; the February 1948 communist coup is a separate base event.

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
31509131947

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

Outcome and Target

Coup Atlas research identifies the target as: The non-communist ministers survived the parcel-bomb plot; the affair fed the crisis that led to the communist takeover in February 1948.

Baseline coding: Plot discovered and disrupted before execution. 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

CSP

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

New York Times

“CZECHS SEIZE 80 TO FORESTALL COUP Plot Against Benes Reported Foiled – Prague Sees Claim a Communist Exaggeration,” September 16, 1947

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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