Coup Atlas Research Database
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40404012010AttemptedMilitary coup

Guinea-Bissau, 2010 — military coup attempt

Guinea-Bissau (GNB)West Africa, AfricaApril 1, 2010

Event Summary

The dataset records an event coded as an attempted military coup in Guinea-Bissau on 1 April 2010, a mutiny by soldiers that briefly threw the government into crisis and underscored the military's dominance over the country's fragile civilian institutions. The action arose from tensions within the armed forces following the turmoil of 2009, when President Joao Bernardo Vieira had been assassinated and a new president, Malam Bacai Sanha, elected. On 1 April 2010, mutinous soldiers led by or associated with the deputy army chief of staff briefly detained the prime minister, Carlos Gomes Junior, and the army chief of staff, Zamora Induta, in a show of force that the government and international observers characterized as an attempted coup or a serious challenge to civilian authority.

Crowds reportedly rallied in support of the mutineers' figurehead, the drug linked general Antonio Indjai, who emerged strengthened from the affair. The elected government survived in form, but the episode confirmed that real power lay with the military. Guinea-Bissau's instability persisted, and in April 2012 the army mounted a full coup, seizing power between rounds of a presidential election.

Researched Details

Researched

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

Target identified in Coup Atlas research: Guinea-Bissau's civilian government survived the April 2010 military mutiny in form, but the army's dominance was confirmed
RESEARCHED NAME
Key figures
Carlos Gomes Junior (prime minister of Guinea-Bissau, detained)
Zamora Induta (army chief, detained)
Antonio Indjai (mutiny figurehead)

Sources

President Joao Bernardo Vieira of Guinea-Bissau was assassinated in March 2009, and Malam Bacai Sanha was subsequently elected president.
SOURCE REVIEWED US News, Guinea-Bissau history of coups open source ↗
On 1 April 2010 mutinous soldiers detained Prime Minister Carlos Gomes Junior and army chief of staff Zamora Induta.
SOURCE REVIEWED Wikipedia, Antonio Indjai open source ↗
General Antonio Indjai emerged strengthened from the April 2010 affair and later became army chief of staff.
SOURCE REVIEWED Wikipedia, Antonio Indjai open source ↗
In April 2012 the army seized power in Guinea-Bissau between rounds of a presidential election.
SOURCE REVIEWED Wikipedia, List of coups and coup attempts by country open source ↗

Editorial Note

Dataset date 1 April 2010 corresponds to the military mutiny that detained the prime minister and army chief; the precise framing is lightly documented in accessible English sources this session and flagged, while the mutiny, the detentions, and Indjai's rise are verified. Continues the Guinea-Bissau run; a step toward the April 2012 full coup.

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
40404012010
Albrecht/Koehler/Schutz (CAM) id
CAM-404-2010-04-01

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

Outcome and Target

Coup Atlas research identifies the target as: Guinea-Bissau's civilian government survived the April 2010 military mutiny in form, but the army's dominance was confirmed.

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

“Military Takeover Points to Coup in Guinea-Bissau,” April 1, 2010
“Guinea-Bissau Premier Released from House Arrest,” April 2, 2010

Al Jazeera

“President says Guinea-Bissau ‘calm’,” April 2, 2010

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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