Coup Atlas Research Database
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91001262012AttemptedMilitary coup

Papua New Guinea, 2012 — military coup attempt

Papua New Guinea (PNG)Melanesia, OceaniaJanuary 26, 2012

Event Summary

On 26 January 2012 a military mutiny erupted in Papua New Guinea when about twenty soldiers led by the retired colonel Yaura Sasa seized the defence force commander, Brigadier General Francis Agwi, and placed him under house arrest, in an armed intervention arising from a bitter constitutional crisis over who was the country's legitimate prime minister. The dispute had begun in August 2011 when Peter O'Neill took the prime ministership while the veteran leader Sir Michael Somare was abroad receiving medical treatment; in December 2011 the Supreme Court ruled Somare's removal unlawful and ordered him reinstated, but O'Neill, backed by parliament, the public service, the police, and the military command, refused to yield, producing rival claimants to power. Somare and his cabinet then purported to appoint Sasa to take over the defence force.

In the pre dawn raid on Taurama Barracks near Port Moresby, Sasa's men overpowered the guards, seized Agwi, and called on the governor general to reinstate Somare, threatening further action. But the mutiny won little support, and O'Neill's government swiftly contained it: Agwi was freed the same day, the soldiers withdrew and surrendered their weapons, and Sasa was arrested. O'Neill remained in power.

Researched Details

Researched

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

Target identified in Coup Atlas research: Prime Minister Peter O'Neill's government swiftly contained the January 2012 mutiny by Sasa seeking to reinstate Somare
RESEARCHED NAME
Key figures
Peter O'Neill (de facto prime minister of PNG, whose government prevailed)
Yaura Sasa (retired colonel, mutiny leader)
Michael Somare (rival PM claimant the mutiny sought to reinstate)
Francis Agwi (defence force commander, seized)

Sources

The 2012 Papua New Guinea Defence Force mutiny took place on 26 January 2012 when a group of military personnel headed by retired Colonel Yaura Sasa took the defence force commander, Brigadier General Francis Agwi, prisoner.
SOURCE REVIEWED Wikipedia, 2012 Papua New Guinea Defence Force mutiny open source ↗
The mutiny was related to a dispute over the prime ministership between Michael Somare and Peter O'Neill after the Supreme Court ordered Somare reinstated in December 2011.
SOURCE REVIEWED Wikipedia, 2012 Papua New Guinea Defence Force mutiny open source ↗
At 3:00 am about 20 soldiers took Agwi and two other officers prisoner at Taurama Barracks and Sasa called on the governor general to reinstate Somare.
SOURCE REVIEWED Wikipedia, 2012 Papua New Guinea Defence Force mutiny open source ↗
Agwi was freed that evening, the soldiers surrendered their weapons, and Sasa was arrested and charged with mutiny.
SOURCE REVIEWED Wikipedia, 2012 Papua New Guinea Defence Force mutiny open source ↗

Editorial Note

Date match to the 26 January 2012 PNG mutiny. Dataset codes it a military coup with leader unharmed; the de facto prime minister O'Neill survived, accurate, though Sasa framed it as a lawful replacement of the commander rather than a coup. Well documented. First Papua New Guinea record in the dataset run.

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
91001262012
Albrecht/Koehler/Schutz (CAM) id
CAM-910-2012-01-26

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

Outcome and Target

Coup Atlas research identifies the target as: Prime Minister Peter O'Neill's government swiftly contained the January 2012 mutiny by Sasa seeking to reinstate Somare.

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.

Wall Street Journal

“World News: World Watch,” January 26, 2012

The Daily Telegraph

“Coup in Papua New Guinea fails: World Bulletin,” January 27, 2012

The Guardian

“Papua New Guinea: Military coup thwarted by government troops,” January 27, 2012

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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