ECOWAS, the Niger coup, and the AES exit — the unraveling of West African collective security

<p>On 26 July 2023 the Niger Presidential Guard detained Mohamed Bazoum and announced the Conseil National pour la Sauvegarde de la Patrie. ECOWAS responded with the most aggressive sanctions regime in its history: border closures, asset freezes, an electricity cut from Nigerian supply, a 7-day deadline to restore constitutional order, and an authorized standby-force deployment. The intervention never came. Eighteen months later, Niger, Mali, and Burkina Faso had jointly withdrawn from ECOWAS and constituted the Alliance of Sahel States (AES). West African regional security architecture is being redrawn.</p> <p>Several factors prevented the threatened intervention. The Nigerian National Assembly withheld authorization for cross-border deployment despite President Tinubu&#x27;s apparent willingness as ECOWAS chair. Senegal&#x27;s Macky Sall declined to commit forces. The internal ECOWAS legal opinion noted the Protocol on the Mechanism for Conflict Prevention, Management, Resolution, Peacekeeping and Security required a higher threshold than ECOWAS had documented. Beyond the legal niceties, the public mood in Lagos, Dakar, and Accra was that another West African war was politically intolerable.</p> <p>What followed was institutional contraction. The Bazoum administration, formally still regarded by ECOWAS as Niger&#x27;s legitimate government, was effectively defenseless. The CNSP consolidated. Sanctions persisted but were undermined by Burkinabè and Malian supply chains, Russian Africa Corps logistical support, and humanitarian carve-outs that the junta exploited. By December 2023, ECOWAS quietly began rolling back sanctions; by early 2024 the three Sahel states announced their withdrawal from ECOWAS in unison.</p> <p>Yvan Guichaoua at Kent and the International Crisis Group have argued the underlying failure was the gap between ECOWAS&#x27;s anti-coup norm and ECOWAS&#x27;s capacity to enforce it. The Lomé Declaration&#x27;s anti-unconstitutional-change provisions assumed a regional military capacity ECOWAS had never fully built. When that gap became visible, the credibility discount cascaded: future coup-makers know the threat of intervention is bluff.</p> <p>The AES is not a serious mutual-defence arrangement yet, but it has begun joint counter-jihadist operations and a defence pact signed in September 2023. Mali, Burkina, Niger now share Russian Africa Corps deployments, a &#x27;confederation&#x27; framework, and aligned foreign policy posture (recognition of the DPRK, alignment with Russia at UN votes). The institutional question for ECOWAS is whether its remaining twelve member states can recover the credibility lost in 2023. The honest assessment is that the anti-coup deterrent is gone for at least a decade. What replaces it has not yet been built.</p>