This overview of West Africa brings together geopolitics, economics and security for September 2026 and covers the period from mid-August to mid-September. It follows on from our August 2026 overview and our July edition, with the same approach: gathering dated and sourced facts, then drawing from them a reading that is useful to organisations operating in the region.
The past month was marked by a rare development: it was not the jihadist threat that most directly endangered a Sahelian government, but a rift within the Nigerien army. At the same time, the Alliance of Sahel States (AES) passed the three-year mark, Algeria returned to Bamako, and Dakar re-engaged with the International Monetary Fund.
Security: an internal rift in Niger, a logistical siege that drags on in Mali
Niamey: the mutiny of 28-29 August and its aftermath
On the night of Friday 28 to Saturday 29 August 2026, a mutiny in Niamey targeted the presidency, the airport and national television before being put down. On Friday 4 September, the Nigerien government held its first Council of Ministers devoted to these events: it referred to an “attempt at destabilisation” involving elements of the special intelligence battalion of the special operations command, notably at Air Base 101 in Niamey, and acknowledged civilian casualties for the first time.
Arrests continued over the weekend of 5 and 6 September. A regional security source quoted in the press spoke of “dozens and dozens, even hundreds” of soldiers detained, notably from the special forces; no official toll has been published. Defence Minister Salifou Mody described the mutineers as soldiers “in breach of military regulations”. Niamey has alleged foreign complicity without naming any state and says it is preparing action before international courts; Paris has rejected any French involvement, with Foreign Minister Jean-Noël Barrot calling it “pure fantasy”. At this stage, these mutual accusations are not publicly substantiated.
Two points deserve attention. First, Air Base 101 hosts the command post of the AES Unified Force: an internal crisis there strikes at the heart of the confederal set-up. Second, the discontent described by several sources reportedly relates to units engaged for a long time in the fight against jihadists, notably in the Tillabéri region — a reminder that continuous operational pressure carries an institutional cost. Political ruptures by force remain a risk factor in their own right in the region.
Séguédine: a second front in Niger’s far north
On 15 August 2026, the Patriotic Movement for Freedom and Justice (MPLJ) claimed an attack on a National Guard camp and a joint police-gendarmerie-customs post at Séguédine, in the far north of Niger, near the Libyan border. The movement — which claims to support former president Mohamed Bazoum, overthrown in July 2023 and detained since — claims at least fifteen killed among the security forces as well as the seizure of vehicles, weapons and ammunition, and on 19 August released a video showing captured soldiers. These tolls come from a belligerent and have not been independently confirmed.
What matters is not the count: it is the geography and the nature of the actor. Séguédine lies on the trans-Saharan routes towards Libya, very far from the exposure zones usually identified in our map of security risks. A non-jihadist armed actor active in the north opens a theatre distinct from that of ISGS and JNIM, whose rivalry had until now shaped the reading of the threat.
Mali: the escorted convoy has become the norm
One year after the fuel blockade declared by JNIM on 3 September 2025, the situation in Bamako has eased: since the beginning of September 2026, fuel has again been available at the capital’s filling stations and power cuts there have fallen markedly. The rest of the country remains very unevenly supplied. This respite rests on an arrangement that has become structural: convoys of tanker trucks escorted by the army — nearly 940 trucks escorted on the Kayes-Bamako route alone in early July 2026.
The mechanism remains fragile. More than 300 tankers have been destroyed since the blockade began, and Mali imports around 95% of its fuel by road, from Senegal and Côte d’Ivoire. The logic of economic siege remains intact: targeting logistics rather than the capital itself. For operators, the consequence is direct and lasting — see our analyses of road convoy security, regional trade corridors and the role of fuel trafficking. The coordination dynamic observed during the July 2026 offensive has not disappeared.
Burkina Faso and the coastal margins
In Burkina Faso, armed group activity remains concentrated in the North and the Centre, with recurring attacks on military positions; the authorities have announced an intensification of operations in 2026 reaching into border areas. On the coastal margins, the most useful analytical framework remains that of the International Crisis Group in its report No. 321 of 20 February 2026: expansion beyond the Sahel is not a priority for JNIM, whose leaders fear that too rapid a push would fragment the movement. This prevents neither large-scale attacks, such as the one at Kofouno in northern Benin in March 2026 (fifteen soldiers killed, claimed by JNIM), nor continued pressure on the Savanes region in Togo.
Geopolitics: the AES turns three, ECOWAS negotiates as a bloc, Algiers returns to Bamako
Three years of the Liptako-Gourma Charter
16 September 2026 marks three years since the signing, in Bamako, of the Liptako-Gourma Charter establishing the AES between Mali, Burkina Faso and Niger, which became a confederation on 6 July 2024 in Niamey. The architecture has expanded: after the confederal investment and development bank and the Unified Force, the Confederal Parliament held its inaugural session on 24 August 2026 in Niamey, with 45 members. Its practical arrangements — session calendar, actual legislative power, relationship with national parliaments — have not yet been specified. Our institutional review of the AES details each of these bodies, and our analysis of the Alliance’s financial sovereignty follows the economic side.
ECOWAS-AES: a collective negotiation under an extended mandate
On the ECOWAS side, the method has become clearer: heads of state have extended until December 2026 the mandate of their chief negotiator for relations with the AES, Lansana Kouyaté, and asked member states to refrain from concluding separate bilateral agreements — talks will be held as a unified bloc. On the AES side, experts from the three countries met in late June in Ouagadougou to harmonise their positions. The withdrawal from ECOWAS, effective since 29 January 2025, has therefore not closed the matter: it has opened a negotiation whose timetable for an outcome remains unknown. On the substance of the dispute, see why ECOWAS is contested.
Legal disengagement is also continuing. Following the joint announcement of September 2025, Niger notified its withdrawal from the Rome Statute on 18 June 2026, and Mali and Burkina Faso on 24 June: these withdrawals from the International Criminal Court will take effect in June 2027, as the treaty provides for twelve months’ notice. The Institute for Security Studies sees in this the mark of an Alliance that favours joint action, whatever the consequences.
The Algiers-Bamako thaw
Algerian Prime Minister Sifi Ghrieb travelled to Bamako on Monday 14 September 2026, at the invitation of his Malian counterpart Abdoulaye Maïga, and was received by the transitional president, General Assimi Goïta. The visit followed Mr Maïga’s trip to Algiers on 24 August. Border security, trade, transport, energy, health, training and investment were on the agenda. After two years of badly deteriorated relations, this thaw changes the regional equation in the north — to be followed alongside developments in Niger-Algeria relations and the weight of partnerships with Russia in the great-power game.
Benin-Niger: a corridor on the way to reopening
Closed since August 2023, the border between Benin and Niger is the subject of a normalisation process. After Romuald Wadagni and Abdourahamane Tiani announced a dedicated mechanism in early June 2026, a Nigerien delegation led by Major General Mohamed Toumba, Minister of State for the Interior, held forty-eight hours of negotiations in Cotonou, resulting in agreements in principle on the security, economic and legal aspects. Niamey has set two preconditions: a defence agreement and a security agreement enshrining that neither country’s territory will be used against the other, together with transparency on foreign arrangements near the common border, and the creation of a bilateral intelligence fusion cell.
The stakes are considerable for regional logistics: the Cotonou-Malanville-Niamey corridor, around one thousand kilometres long, is Niger’s main outlet to the sea. Its reopening would reshape flows currently diverted to other ports — a parameter to be factored into supply plans now.
Economy and resources: growth holds, Dakar restructures, the AES showcases mining
Regional growth that remains high
Projections remain positive. In WAEMU, growth is expected at around 5.8% in 2026 after 6.1% in 2025; the BCEAO put the first quarter of 2026 at 6.5%, after 6.9% in the fourth quarter of 2025. The African Development Bank forecasts around 4.6% for West Africa in its 2026 African Economic Outlook report. By country, the World Bank places Benin at the top of the Union, ahead of Niger (6.7%), Côte d’Ivoire (6.4%), Togo (5.4%), Guinea-Bissau (5.2%), Mali (5%), Burkina Faso (4.9%) and Senegal (4.1%). These are institutional projections, sensitive to the international economic situation, the security situation and climatic conditions.
Senegal: agreement with the IMF and debt treatment
On 1 September 2026, Senegal and the IMF reached a staff-level agreement on a three-year programme of around $2.2 billion under the Extended Credit Facility. The authorities announced their intention to seek a treatment of their debt, with the Fund welcoming recourse to the G20 Common Framework; public debt was estimated at around 132% of GDP at the end of 2024. The agreement still has to be approved by the Fund’s Executive Board. For a country that plays a pivotal role in regional diplomacy and is one of Mali’s two supply corridors, Dakar’s fiscal trajectory is a regional parameter, not just a national one.
SAMAO 2026 and the first AES energy and mining week
In Ouagadougou, the 8th West African Mining Activities Week (SAMAO), combined with the first Energy, Mines and Hydrocarbons Week of the AES Confederation, is being held from 14 to 19 September 2026, on the theme “Governance of extractive resources: geopolitical stakes, challenges and opportunities for African states”. The title sums up the current sequence: after the turn towards mining nationalisation, the three states are seeking to organise collective control of the rent. For operators, this translates into a shifting contractual framework and an unchanged requirement for site security. The illicit economy also continues to graft itself onto these flows, as shown by the rise of West African drug trafficking and the appeal of artisanal gold to armed groups.
What this changes for exposed organisations
- Internal political risk moves up the hierarchy. A mutiny in a Sahelian capital affects the airport, telecommunications and freedom of movement faster than an attack in a rural area. Evacuation plans must include scenarios of sudden, short urban crises, not just gradual deterioration.
- The map of Niger needs to be revised. The far north is no longer a blind spot: a non-jihadist armed actor operates there, on trans-Saharan routes. A country risk matrix built solely around Tillabéri and the Liptako is now incomplete.
- The escorted convoy is a lasting regime, not an interlude. In Mali, it has to be budgeted for: longer lead times, buffer stocks of fuel, dependence on a military timetable. Our travel management benchmarks remain the working basis.
- Anticipate the Benin-Niger reopening without depending on it. Prepare the logistical, customs and contractual scenarios for a resumption of the Cotonou corridor, while maintaining alternative routes until the defence and security agreements are signed.
- The legal framework keeps moving. Exit from ECOWAS, scheduled exits from the ICC, a collective negotiation under way: clauses on applicable law, dispute resolution and consular protection deserve a review, as do duty of care obligations towards staff.
What this month does not yet tell us
Three caveats apply. First, the human tolls of both the Niamey mutiny and the Séguédine attack rest on partial sources — authorities, armed movement, anonymous security sources — with no independent official count to date. Second, the improvement in supply in Bamako has been measured over only a few weeks: it is reversible, and an attack on a single convoy would be enough to reverse it. Finally, the negotiation between ECOWAS and the AES has produced no public timetable; extending a negotiator’s mandate is not concluding an agreement.
Frequently asked questions
What happened in Niamey in late August 2026?
On the night of 28 to 29 August 2026, a mutiny targeted the presidency, the airport and national television; it failed. The government speaks of an “attempt at destabilisation” involving elements of a special operations intelligence unit, notably at Air Base 101 in Niamey. Arrests continued in early September and no official toll has been published.
Is the fuel blockade in Mali over?
No. Since the beginning of September 2026, fuel has again been available in Bamako and power cuts there have declined, thanks to convoys escorted by the army. But the blockade declared by JNIM in September 2025 has not been lifted and supply remains very uneven outside the capital.
Where do relations between ECOWAS and the AES stand?
The withdrawal of the three countries has been effective since 29 January 2025. Talks are continuing: ECOWAS has extended the mandate of its chief negotiator until December 2026 and rules out separate bilateral agreements. No timetable for resolving the crisis has been made public.
Will the border between Benin and Niger reopen?
The process is under way: agreements in principle were reached in Cotonou on the security, economic and legal aspects. Niamey, however, makes reopening conditional on the signing of a defence agreement and a security agreement, as well as the establishment of a bilateral intelligence fusion cell. No date has been set.