ECOWAS appoints a new mediator in the Sahel break: Lansana Kouyaté tasked with restoring dialogue with the AES

The Economic Community of West African States (ECOWAS) has taken a new step in its attempt to engage with the three dissident Sahelian states. On March 25, 2026, the sub-regional organization confirmed the appointment of Lansana Kouyaté, former Guinean Prime Minister and former Executive Secretary of ECOWAS, as "chief negotiator" with the countries of the Alliance of Sahel States (AES). This designation comes amid a deep diplomatic rift between the coastal West African states and the three nations led by military juntas: Mali, Burkina Faso, and Niger.

Lansana Kouyaté, whose diplomatic experience spans several decades within regional institutions, inherits a mission considered one of the most challenging in the recent history of ECOWAS. His predecessor, Senegalese President Bassirou Diomaye Faye, appointed as mediator in July 2024, failed to sway the position of the three Sahelian juntas. Similarly, the tour conducted by Ghanaian President John Dramani Mahama in March 2025 in the capitals of the AES ended in a resounding failure, with military authorities maintaining their decision for a definitive withdrawal from the regional organization.

The simultaneous withdrawal of Mali, Burkina Faso, and Niger from ECOWAS in January 2025 constitutes the most serious institutional crisis the organization has faced since its creation in 1975. This collective secession follows the gradual formation of the Alliance of Sahel States, an alternative confederation formalized in May 2024 during a meeting in Niamey. The three countries share a common geopolitical vision, characterized by a pronounced anti-imperialist discourse, a strong sovereignist stance, and a strategic rapprochement with Moscow. Their break with ECOWAS is also part of a broader challenge to French influence in the region, with the three juntas having successively expelled French forces and their Western partners from their territories between 2022 and 2024.

On the security front, the situation remains concerning across the Sahelian zone. The three AES countries continue to face a jihadist insurgency led by groups affiliated with Al-Qaeda and the Islamic State. Between March 7 and 20, 2026, several significant incidents were reported. In Mali, the Malian Armed Forces (FAMa) conducted a successful rescue operation, allowing for the recovery of two soldiers kidnapped in the fall of 2025. Malian authorities have also continued their campaign of targeted airstrikes against armed group positions, as part of an offensive military strategy that now prioritizes pinpoint raids and air support.

In Niger, the security situation has deteriorated with several large-scale attacks. In the Tahua region, unidentified armed groups attacked a customs post, killing one officer and seriously injuring two others. Further south, in the city of Zinder, a vehicle laden with an improvised explosive device struck a school before exploding, illustrating the terror tactics employed by insurgents against civilian infrastructure. Between March 13 and 19, however, Nigerien forces recorded a notable operational success by neutralizing around twenty Boko Haram fighters and arresting 83 suspects during an operation at the border with Nigeria.

In Burkina Faso, an unusual dynamic has been observed: fighters affiliated with the Islamic State in the Greater Sahara (EIGS) attacked positions held by Jama'at Nusrat al-Islam wal-Muslimin (JNIM), the group linked to Al-Qaeda. This confrontation between rival jihadist organizations reflects internal fractures within the Sahelian jihadist movement but should not obscure the overall threat these groups pose to regional stability.

Beyond the immediate borders of the AES, the jihadist threat continues to extend toward the coastal states. On March 24, 2026, the Guinean Public Prosecutor's Office announced the dismantling of several networks allegedly linked to JNIM. Eleven people were arrested in the prefectures of Siguiri, Mandiana, and Kankan, including not only Guinean nationals but also citizens from Mali, Niger, and Burkina Faso. The main suspect, identified as Fotigi Dau, is believed to have been involved in paying ransoms for the release of hostages held in Mali, relying on two Guinean accomplices who managed encrypted chat rooms.

This Guinean operation reveals the gradual extension of logistical and financial networks of armed groups beyond their traditional operational zone. Guinea presents a dual interest for jihadist organizations: on one hand, as a platform for the underground economy, particularly gold trafficking, and on the other hand, as a potential target for territorial expansion. If militants decide to capitalize on their gains in southern Mali toward Guinea, they will immediately seek to integrate into local smuggling channels for mineral resources, particularly gold, a strategic resource for financing their activities.

The appointment of Lansana Kouyaté thus occurs in a context where security challenges intertwine with political ruptures. According to sources close to the ECOWAS presidency in Abuja, Kouyaté's mission aims to "bring the peoples of the West African community closer together," a cautious formulation that implicitly acknowledges the difficulties of the task. An official within the Sierra Leonean presidency stated: "Kouyaté is a great diplomat. His experience will allow us to build closer ties with our brothers in the AES. There are common battles to be fought together," a clear reference to the counter-terrorism struggle that transcends current political divisions.

It remains to be seen whether this new diplomatic initiative will succeed in overcoming the obstacles that have thwarted previous attempts. The three juntas of the AES have shown unwavering determination in their desire for autonomy from ECOWAS, which they perceive as an instrument of maintaining French neo-colonial influence. The rapprochement with Russia, materialized through military cooperation agreements and arms deliveries, has now become a pillar of their geopolitical strategy. For its part, ECOWAS must contend with its own internal divisions, with some member states tempted by a more accommodating stance while others maintain a hard line against military regimes.

The stakes go far beyond the simple reintegration of three countries into a regional organization. It concerns the very coherence of the West African security and economic architecture at a time when the jihadist threat demands enhanced cross-border coordination. The current fragmentation of the region mechanically weakens the collective capacity to respond to armed groups that operate without regard for administrative borders or institutional affiliations.

Lansana Kouyaté will have to navigate these diplomatic pitfalls while taking into account the realities on the ground. His success will depend as much on his ability to convince the Sahelian juntas of the benefits of dialogue as on his capacity to obtain concrete guarantees from ECOWAS on issues of sovereignty and non-interference that are at the heart of the AES's demands. In a Sahel where weapons often speak louder than words, Kouyaté's diplomacy will be tested in one of the most complex crises in the recent history of West Africa.