Coup Atlas Research Database
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47503302004ConspiracyMilitary coup

Nigeria, 2004 — military coup conspiracy

Nigeria (NGA)West Africa, AfricaMarch 30, 2004

Event Summary

This entry is coded 30 March 2004, corresponding to the alleged 2004 coup plot against President Olusegun Obasanjo of Nigeria. Around late March and early April 2004 Obasanjo's civilian government investigated what it called a serious breach of national security, interrogating nearly 30 mid-ranking military officers, most of them from the mainly Muslim Hausa-speaking north, and impounding their cell phones. Major Hamza al-Mustapha, the former head of personal security for the late military dictator Sani Abacha, was identified as a possible leader and taken from prison for questioning.

In October 2004 the government formally charged four military officers and a civilian with treason for plotting to kill Obasanjo by shooting down his helicopter with a Stinger surface-to-air missile; the charge sheet alleged that al-Mustapha disbursed money for the missile between November 2002 and March 2004, and that Navy Commander Yakubu Kudambo had drafted a coup speech outlining a new regime. The 30 March 2004 coding sits at the close of that alleged funding window and the start of the late-March and April 2004 investigation and arrests.

Researched Details

Researched

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

Target identified in Coup Atlas research: Obasanjo's government said it foiled the plot and charged the suspects with treason
RESEARCHED NAME
Key figures
President Olusegun Obasanjo (target)
Major Hamza al-Mustapha (Abacha's ex-security chief, suspected)
Navy Commander Yakubu Kudambo and other charged officers

Sources

In April 2004 Obasanjo's democratically elected government said it had arrested several military officers in connection with a coup plot, and Hamza al-Mustapha, Abacha's chief of security, was suspected of involvement.
SOURCE REVIEWED Wikipedia: Military coups in Nigeria open source ↗
Military officials said nearly 30 mid-ranking officers, most of them from the mainly Muslim Hausa-speaking north, had been interrogated and their cell phones impounded, amid newspaper reports they were possibly plotting a coup, and possible plot leader former major Hamza al-Mustapha was taken from a Lagos jail for questioning.
SOURCE REVIEWED VOA: Nigeria Investigates Possible Coup Plot open source ↗
Four military officers and a civilian were charged with treason for plotting to kill Obasanjo by shooting down his helicopter with a missile, with al-Mustapha accused of disbursing money for a Stinger surface-to-air missile and Navy Commander Kudambo said to have drafted a coup speech.
SOURCE REVIEWED The New Humanitarian: Five charged with planning to shoot down Obasanjo's helicopter open source ↗
According to the charges, al-Mustapha gave various sums of money for the purpose of purchasing the missile between November 2002 and March 2004, the money to be used to shoot down the president's helicopter with the president on board.
SOURCE REVIEWED Irish Times: Nigerian military officers charged with coup plot open source ↗

Editorial Note

Coded 30 Mar 2004 sits at the end of the alleged funding window (Nov 2002 to Mar 2004) and the start of the late-March/April 2004 investigation and interrogations (formal treason charges came in October 2004). Verified as the 2004 anti-Obasanjo plot. Third Nigeria record in the run (after two in the previous batch).

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
47503302004

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

Outcome and Target

Coup Atlas research identifies the target as: Obasanjo's government said it foiled the plot and charged the suspects with treason.

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.

Wikipedia

Xinhua News Agency

“Nigerian army chief denies knowledge of army involvement in alleged coup,” April 2, 2004

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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