For nearly half a century, Nigeria served as the principal power behind the ECOWAS. Its economic weight, military capabilities, and contributions to regional peacekeeping helped sustain an order often described as Pax Nigeriana. Yet the July 2023 coup in Niger exposed the vulnerabilities of this arrangement. Under President Tinubu’s ECOWAS chairmanship, the bloc adopted a confrontational response involving sweeping sanctions and the threat of military intervention. Rather than restoring constitutional rule, the crisis deepened divisions within West Africa and accelerated the emergence of the AES. The episode raises a fundamental question: how did Nigeria’s attempt to defend regional order contribute to its fragmentation?
Tinubu assumed the rotating ECOWAS chairmanship on July 9, 2023, just weeks before Niger’s July 26 coup, which ousted President Bazoum. He faced a difficult dilemma: allowing another military takeover to stand risked weakening ECOWAS’ norms against unconstitutional rule, while coercive intervention threatened to destabilize an already fragile region. The challenge was not simply to condemn the coup, but to reconcile constitutional principles with diplomatic realities, regional security, and the political constraints facing neighboring states.
ECOWAS initially chose coercion. It imposed economic and financial sanctions on Niger, closed borders, and threatened military action to restore Bazoum. Nigeria also suspended electricity supplies to its northern neighbor, which depended heavily on imported power. These measures were intended to pressure the junta into relinquishing power. Their effectiveness, however, depended on assumptions about the military authorities’ resilience, member states’ willingness to sustain escalation, and neighboring populations’ tolerance of the economic costs.
The approach also carried geopolitical implications. France’s longstanding military and political presence in the Sahel had made Western involvement in regional security deeply contentious. Against this background, ECOWAS’ hardline position was interpreted as reinforcing French strategic interests, although the bloc’s stated rationale was the defense of constitutional order. Whether or not Tinubu intended to advance external interests, perceptions of alignment with former colonial powers weakened the legitimacy of the response among constituencies increasingly receptive to sovereignist and pan-Africanist arguments.
Nigeria’s domestic political constraints further complicated the strategy. Northern Nigerian communities share extensive social, cultural, ethnic, and commercial ties with Niger. The prospect of military intervention therefore raised concerns about cross-border instability and humanitarian consequences. Nigeria’s Senate also expressed reservations about deploying troops. These considerations exposed the limitations of a policy that relied on the threat of force without securing sufficiently broad political support.
Instead of isolating Niger’s junta, the confrontation strengthened solidarity among the military governments of Niger, Mali, and Burkina Faso. In September 2023, the three states established the AES through the Liptako-Gourma Charter, creating a framework for mutual defense. They announced their intention to withdraw from ECOWAS in January 2024, and their withdrawal took effect on January 29, 2025. The rupture challenged the organization’s authority, cohesion, and capacity to manage political transitions.
ECOWAS subsequently softened its approach. In February 2024, it lifted key sanctions against Niger, acknowledging the limitations of prolonged economic pressure. This reversal underscored the difficulty of enforcing regional norms when coercive measures risk aggravating humanitarian hardship and encouraging governments to pursue alternative institutional arrangements. The crisis revealed that regional leadership cannot rest on material power alone. It also requires legitimacy, consultation, and an appreciation of how neighboring governments interpret collective action.
The transition from Tinubu’s chairmanship to that of Sierra Leonean President Bio in June 2025 offered an opportunity to emphasize dialogue and preserve practical cooperation. Bio inherited a regional bloc weakened by the AES withdrawal. His chairmanship provided an intermediate phase in ECOWAS’ response, with renewed attention to regional security, economic integration, and the need to maintain engagement with transitional governments. Bio’s chairmanship is an important link between Tinubu’s confrontational approach and the subsequent diplomatic opening. It illustrates the need to defend constitutional governance while preserving channels for cooperation. Political estrangement did not eliminate the region’s shared interests in trade, migration, counterterrorism, and border security.
The shift toward dialogue became more visible through Senegalese President Faye, whose mediation role preceded his assumption of the ECOWAS chairmanship. In 2024, Faye was tasked with engaging the Sahelian states following their announced withdrawal. His approach emphasized direct diplomacy and recognition of the political realities confronting the region. Rather than making immediate reintegration the sole objective, mediation offered a way to preserve cooperation while acknowledging the AES states’ insistence on sovereignty.
At the 69th ECOWAS Summit in July 2026, Faye assumed the chairmanship of the Authority of Heads of State and Government. General Birame Diop, Senegal’s former defence minister, subsequently took office as President of the ECOWAS Commission on August 31, 2026. These developments created an opportunity to connect high-level diplomacy with the organization’s operational priorities. However, appointments alone cannot establish a transformation in regional policy. Their significance depends on the decisions and institutional arrangements that follow.
A significant step came on October 17, 2026, when ECOWAS and the AES held their first ministerial dialogue on cooperation in Dakar. The delegations, led by Senegalese Foreign Minister Cheikh Niang and Burkina Faso’s Foreign Minister Karamoko Jean-Marie Traoré, agreed to establish joint thematic working groups to prepare a framework agreement for future cooperation. The discussions opened a formal channel for addressing shared concerns, including regional security, trade, cross-border movement, and economic connectivity. The meeting did not reverse the AES withdrawal. Rather, it established a basis for structured cooperation between the two blocs.
The Dakar dialogue represents a potentially important change in the management of regional fragmentation. Its significance lies not in an immediate restoration of political unity, but in the possibility of reconciling competing institutional visions with shared economic and security interests. Whether this process produces lasting cooperation will depend on implementation, continued political engagement, and the ability of both sides to navigate disagreements over sovereignty, democratic governance, and regional security.
The wider lesson is that regional institutions must distinguish between defending constitutional principles and relying predominantly on coercion. Anti-coup norms matter, but their enforcement is more sustainable when supported by credible mediation, coordinated diplomacy, and strategies that account for local political conditions. For Nigeria, the crisis illustrates the limits of assuming that regional primacy automatically translates into diplomatic influence. Leadership becomes less effective when neighboring states perceive it as unilateral or insufficiently attentive to their interests.
Finally, the rupture between ECOWAS and the AES reflects competing visions of sovereignty, security, and regional integration. Nigeria’s response to the Niger coup demonstrated the risks of pursuing institutional objectives through maximalist pressure without a viable political settlement. The subsequent diplomatic opening suggests that rebuilding regional cooperation requires sustained engagement, pragmatic compromises, and respect for the agency of neighboring states.
This regional challenge also has implications for Nigeria’s domestic political future. Atiku Abubakar’s reported campaign pledge to bring Mali, Burkina Faso, and Niger back into ECOWAS if elected president raises the question of whether a change in leadership in Abuja could help repair the diplomatic damage. While such a commitment signals recognition of the strategic costs of regional fragmentation, the return of the three countries cannot be secured by Nigerian diplomacy alone. It would require sustained negotiations, respect for the sovereignty concerns of the AES governments, and a willingness on both sides to rebuild cooperation without abandoning fundamental regional principles. The credibility of this pledge will depend not on its electoral appeal, but on whether it can be translated into a realistic diplomatic strategy that advances regional unity while acknowledging the political realities that produced the rupture.
The future of Pax Nigeriana cannot be secured through coercion alone, nor can West African integration be sustained through institutional declarations without political consent. ECOWAS’ challenge is to preserve its commitment to constitutional governance while rebuilding the trust necessary for meaningful regional cooperation. The task ahead is not simply to restore the old regional order, but to construct one capable of accommodating legitimate disagreements without sacrificing collective security and economic interdependence.
