The fragile future of Sahel alliance amid Mali’s security crisis

The Alliance of Sahel States (AES) is facing its first operational credibility crisis. During late April 2026 offensives targeting multiple Malian military positions, neither Burkina Faso nor Niger deployed troops to support Bamako. This military silence starkly contrasts with the Liptako-Gourma Charter, signed in September 2023, which explicitly mandates mutual assistance and rescue among the three post-coup regimes.

The coordinated attacks struck northern and central Mali, simultaneously hitting army strongholds and facilities linked to foreign auxiliaries. Jama’at Nusrat al-Islam wal-Muslimin (JNIM) fighters, affiliated with Al-Qaeda, operated in tandem with a resurgent offensive by the Permanent Strategic Framework for the Defense of the Azawad People (CSP-DPA). For Bamako, the symbolic blow matched the material losses.

The mutual defense charter remains unfulfilled

The AES founding document leaves little room for interpretation. It obliges each signatory state to treat any armed aggression against a member as a threat to all, mobilizing necessary means—including military support. Conceptually, this mirrors NATO’s Article 5, adapted to a region where Mali has battled multifaceted insurgencies for over a decade.

In practice, Ouagadougou and Niamey grapple with their own security crises. Captain Ibrahim Traoré’s regime contends with escalating jihadist pressure eroding Burkina Faso’s territorial control, while General Abdourahamane Tiani consolidates power in Niamey by redeploying forces along southern borders. Neither partner possesses the strategic depth to dispatch contingents to Mali without compromising their own defenses.

Yet capacity constraints don’t fully explain the absence of even symbolic gestures. No joint reconnaissance missions, symbolic deployments, or overt material deliveries have materialized to reflect the solidarity proclaimed in speeches. The Sahel federation, formally launched in Niamey in July 2024, struggles to establish functional decision-making bodies capable of swift action.

Mali stands isolated against a resurgent threat

Colonel Assimi Goïta confronts an increasingly unfavorable security equation. The withdrawal of the UN Multidimensional Integrated Stabilization Mission in Mali (MINUSMA) in late 2023, followed by severed ties with Western partners, left Mali’s army reliant on Russian support—though its nature has shifted since the Wagner Group’s dismantling. The Africa Corps, now under direct Russian Defense Ministry oversight, operates within a more institutional framework but with a reshuffled force structure.

The late April losses reignited concerns over the ability to hold recaptured territories. Regional analysts note that armed groups exploited a gap in coordination between Malian forces and Russian auxiliaries. The synchronized jihadist and separatist assaults, executed without apparent operational coordination between the two movements, signal an alarming tactical convergence for Mali’s high command.

Political project overshadows military alliance

The Sahel partners’ reluctance sheds light on the AES’s true nature. The alliance primarily serves as a diplomatic shield to legitimize military transitions and facilitate exit from the Economic Community of West African States (ECOWAS), formalized in January 2025. Its economic agenda—centered on a future common currency and a unified biometric passport—commands greater attention from chancelleries than operational cooperation.

For neighboring capitals, April’s precedent serves as a cautionary tale. If military solidarity remains theoretical, each regime must increasingly rely on national resources and extra-regional partners. The prospect of the AES gradually devolving into a purely political framework, stripped of its defensive substance, is now a pressing concern in regional military headquarters.