Coup Atlas Research Database
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80004011981AttemptedMilitary coup

Thailand, 1981 — military coup attempt

Thailand (THA)Southeast Asia, AsiaApril 1, 1981

Event Summary

On 1 to 3 April 1981 a faction of Thai army officers known as the Young Turks, a group of Class 7 military academy graduates who had grown powerful and restive, attempted a coup against the government of Prime Minister General Prem Tinsulanonda. The rebels, led by figures including General Sant Chitpatima, mobilized a large part of the Bangkok garrison, seized key points in the capital, and briefly held the upper hand, in what became known as the April Fool's Day coup. But the attempt failed for a decisive reason: Prem escorted the revered royal family, including King Bhumibol Adulyadej, to the loyal northeastern base at Korat, and the King's evident support for Prem swung the army and public against the rebels.

Deprived of royal legitimacy, the coup collapsed within days and its leaders fled or were arrested, though many were later amnestied. Prem survived and remained prime minister for years, and the episode underscored the decisive role of the Thai monarchy in the country's recurrent military power struggles.

Researched Details

Researched

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

Target identified in Coup Atlas research: Prime Minister Prem Tinsulanonda defeated the April 1981 Young Turks coup after securing the King's support at Korat
RESEARCHED NAME
Key figures
Prem Tinsulanonda (prime minister of Thailand, target)
the Young Turks officers (plotters)
King Bhumibol Adulyadej (whose support proved decisive)

Sources

On 1 to 3 April 1981 a faction of army officers known as the Young Turks attempted a coup against the government of Prime Minister Prem Tinsulanonda in Thailand.
SOURCE REVIEWED Wikipedia, 1981 Thai military rebellion open source ↗
The rebels mobilized much of the Bangkok garrison and seized key points in the capital in what became known as the April Fool's Day coup.
SOURCE REVIEWED Wikipedia, 1981 Thai military rebellion open source ↗
Prem escorted the royal family to the loyal northeastern base at Korat, and the King's support for Prem swung the army and public against the rebels.
SOURCE REVIEWED Wikipedia, 1981 Thai military rebellion open source ↗
Deprived of royal legitimacy the coup collapsed within days, and Prem remained prime minister.
SOURCE REVIEWED Wikipedia, Prem Tinsulanonda open source ↗

Editorial Note

Dataset date 1 April 1981 matches the start of the 1 to 3 April 1981 Young Turks coup. Dataset codes it a military coup with leader unharmed, accurate for Prem. Well documented. Third Thailand record in the run, after the 1977 Chalard coup in batch 72; notable for the decisive role of the monarchy.

Cross-Reference

Datasets agree. At least two of the three reference datasets we check against carry this event, and none of them disagrees about its date or its result.

Identifiers for finding this same event in the other datasets:

Cline Center id
80004011981
Albrecht/Koehler/Schutz (CAM) id
CAM-800-1981-04-01

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

Outcome and Target

Coup Atlas research identifies the target as: Prime Minister Prem Tinsulanonda defeated the April 1981 Young Turks coup after securing the King's support at Korat.

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

CSP

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

Wikipedia

https://en.wikipedia.org/wiki/Prem_T Insula Nonda#Overcoming_coup_attempts

New York Times

“THAILAND’S MILITARY SUFFERS SOME SELF-INFLICTED WOUNDS,” September 15, 1985

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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