Across a strip of earth stretching 5,400 kilometres from the Atlantic coast of Senegal to the Red Sea hills of Sudan, the Sahel has become the defining security challenge of Africa’s twenty-first century. The name comes from the Arabic word for “shore” — the Sahelian zone is, in a sense, the southern shore of the Sahara, a semi-arid belt of acacia scrub and sparse savannah that receives between 200 and 600 millimetres of rain annually, enough to support agropastoral life but not enough to buffer against the droughts that recur with increasing frequency. In Mali, Burkina Faso, Niger, Chad, and parts of Nigeria and Sudan, this fragile ecological balance has been shattered by the simultaneous pressures of jihadist insurgency, military coups, climate stress, and the breakdown of French security architecture that held the region’s contradictions in uneasy check for six decades. What is unfolding is not merely a security crisis but a political earthquake reshaping West African sovereignty, European border policy, and the role of outside powers from Moscow to Beijing.
Geography and Strategic Significance¶
The Sahel’s strategic importance is not immediately obvious to those accustomed to thinking in terms of GDP or conventional military power. The region is among the world’s poorest: Niger, Mali, and Burkina Faso regularly appear at the bottom of the UN Human Development Index. Its population — approximately 150 million across the core Sahelian states — is young, fast-growing, and predominantly rural. Infrastructure is sparse; in Mali, a country larger than France and Germany combined, large areas are accessible only by unpaved track.
Yet the Sahel matters for several reasons that transcend its poverty. First, it is the primary incubation zone for jihadist movements that have proven capable of expanding southward into the far more populous and economically significant Gulf of Guinea states — Côte d’Ivoire, Ghana, Togo, Benin, and Nigeria. The prospect of jihadist insurgency reaching West Africa’s economic core, including Nigeria’s 220 million people and its oil fields, is the scenario that most alarms Western and regional security planners. Second, the Sahel is the primary overland migration corridor for sub-Saharan Africans seeking to reach the Mediterranean and European Union, meaning that Sahelian instability generates direct political pressure in Rome, Paris, and Berlin. Third, the region holds significant resources: Mali is among Africa’s top gold producers, Niger provides roughly 15 percent of Europe’s uranium imports, and the broader region has substantial unexploited mineral wealth that has attracted Chinese and Russian attention.
The Security Unravelling: Libya’s Collapse as Catalyst¶
The 2011 NATO intervention that overthrew Muammar Gaddafi in Libya had consequences that its architects failed to anticipate. Gaddafi had, whatever his other crimes, served as a cork in the bottle of Sahelian instability: his regime employed tens of thousands of Tuareg fighters and other Sahelian men as soldiers and mercenaries, and his patronage networks extended across the desert to Mali, Niger, and Chad. When his regime collapsed, these fighters returned to their home regions with weapons from Libya’s vast and poorly secured arsenals — heavy weapons, rocket launchers, anti-aircraft systems, and small arms that transformed the balance of force in areas previously dominated by light-armed insurgents and poorly equipped government troops.
In northern Mali, the returning Tuareg fighters revitalised the National Movement for the Liberation of Azawad (MNLA), which launched an offensive in January 2012 that rapidly overran Malian army positions across the north. The Malian military’s humiliation at the hands of the MNLA, in turn, triggered the coup of March 2012 that overthrew elected President Amadou Toumani Touré — the first in a cascade of military takeovers that would eventually span the region. The coup paradoxically weakened Mali’s security situation: the new military leadership was no more capable than its predecessor, and the jihadist groups that had initially allied with the MNLA — Ansar Dine, al-Qaeda in the Islamic Maghreb (AQIM), and the Movement for Oneness and Jihad in West Africa (MUJAO) — turned on their Tuareg partners and seized control of northern Mali’s three major cities.
By early 2013, Timbuktu, Gao, and Kidal were under jihadist control. The groups applied a brutal version of Sharia law: the shrines of Timbuktu, UNESCO World Heritage sites of extraordinary cultural significance, were systematically destroyed. More alarming to Paris was the jihadists’ advance southward in January 2013, which threatened to reach the capital Bamako.
France’s Sahel Interventions: Serval to Barkhane¶
France’s response to the 2013 jihadist advance was swift and initially successful. Operation Serval, launched on January 11, 2013, deployed French Special Forces and air power that halted the jihadist advance and then drove the armed groups from the cities they had seized. French paratroopers entered Timbuktu to the apparent jubilation of the population. The operation demonstrated France’s remarkable capacity for rapid military intervention in Africa — a capacity maintained through permanent pre-positioned bases in Senegal, Côte d’Ivoire, Chad, and Djibouti, and through the political relationships built through the “Françafrique” system of post-colonial influence.
Serval was succeeded in 2014 by Operation Barkhane, a broader counterterrorism mission covering the entire Sahelian G5 zone — Mali, Niger, Burkina Faso, Chad, and Mauritania — with headquarters in N’Djamena, Chad, and a forward operating base in Tessalit, Mali. At its peak, Barkhane deployed approximately 5,100 French troops, supported by intelligence assets, drones, and air power, and worked in partnership with the Multinational Joint Task Force and the G5 Sahel joint security force.
Barkhane’s tactical record was mixed. French forces killed numerous senior jihadist figures, including AQIM founder Abdelmalek Droukdel in 2020, and disrupted multiple planned attacks. But the strategic trend was negative: the number of attacks increased year over year, the geographic spread of jihadist activity expanded steadily southward and eastward, and civilian casualties in French operations — several incidents of strikes that killed civilians at weddings and other gatherings — generated growing local hostility. The fundamental problem was structural: there were not enough French troops to secure the vast distances involved, local state capacity was too weak to hold areas after French forces cleared them, and the development investment needed to address the underlying conditions of youth unemployment and governance failure never materialised at the required scale.
The Coup Wave and the Anti-French Turn¶
The political earthquake began in August 2020, when a military junta overthrew Mali’s president Ibrahim Boubacar Keïta — himself already weakened by massive street protests over corruption and insecurity. A second coup in May 2021 replaced the transitional junta with a harder-line military leadership under Colonel Assimi Goïta, who proved far less willing to accept French influence. Relations deteriorated rapidly: the junta expelled the French ambassador, accused Barkhane of atrocities, and began negotiating with Wagner Group for Russian mercenary forces to replace departing French troops.
France withdrew Barkhane from Mali in 2022, a humiliating retreat conducted against a backdrop of Malian military vehicles blocking French convoys and local protesters, encouraged by sophisticated social media campaigns, waving Russian flags and holding photographs of Vladimir Putin. The theatrics of the expulsion were only partly spontaneous: Russian information operations targeting French presence in the Sahel had been underway for years, amplifying anti-French grievances and presenting Russian mercenaries as a credible alternative.
The coups continued. In September 2021, Guinea’s military overthrew President Alpha Condé. In January and September 2022, Burkina Faso experienced two successive coups, with Captain Ibrahim Traoré taking power in the second and subsequently expelling French forces and the French ambassador. In July 2023, General Abdourahamane Tchiani overthrew Niger’s President Mohamed Bazoum in a coup that acquired particular significance: Niger hosted the largest remaining US drone base in the region, the base at Agadez (Air Base 201), and French forces at Niamey. The coup junta subsequently expelled both French and American forces.
In September 2023, military officers in Gabon — an oil-producing state in Central Africa — overthrew President Ali Bongo, ending the Bongo family’s 56-year grip on power and further demonstrating the breadth of the coup contagion.
The Alliance of Sahel States and ECOWAS Paralysis¶
In September 2023, Mali, Burkina Faso, and Niger formalised their alignment by creating the Alliance of Sahel States (Alliance des États du Sahel, AES), and in January 2024 announced their withdrawal from the Economic Community of West African States (ECOWAS). The withdrawals were partly a response to ECOWAS’s threat of military intervention following the Niger coup — a threat that ultimately proved empty — and partly a genuine ideological project to create a post-French, pan-Sahelian order.
ECOWAS’s failure to enforce its own norms against the coup governments reflected the organisation’s structural limitations. Nigeria, ECOWAS’s dominant member and the only state with the military capacity to lead any intervention, was itself managing a domestic security crisis — including the Boko Haram/ISWAP insurgency in its northeast — and proved unwilling to commit forces to what would have been a highly uncertain operation in Niger. The threat of intervention evaporated, demonstrating that ECOWAS’s conditionality mechanisms lack credible enforcement.
The AES represents a genuine political project as well as a defensive alliance. The coup leaders have framed their break from French and Western influence in explicitly pan-Africanist terms, presenting themselves as heirs to the anti-colonial tradition of Amílcar Cabral and Thomas Sankara. Sankara — the Burkinabe revolutionary president assassinated in 1987 with French complicity — has become the symbolic touchstone of the AES governments, whose anti-French rhetoric blends genuine anti-colonial grievance with instrumental deployment by military rulers who need popular legitimacy.
Wagner Group and Africa Corps¶
The Russian mercenary organisation variously known as Wagner Group and, after Yevgeny Prigozhin’s death in August 2023, as the Africa Corps, has become the primary external security provider for the AES governments. Wagner forces arrived in Mali in 2021, numbering approximately 1,000-1,500 personnel, and have since expanded into Burkina Faso and Niger.
Wagner’s business model in the Sahel differs from its Libya or Syria operations. In those theatres, Wagner primarily fought to protect Russian state interests. In the Sahel, the arrangement involves the host government paying for Wagner services partly in cash and partly through mining concessions — gold in Mali and Burkina Faso, and potentially uranium in Niger. This creates a structural alignment: Wagner (now Africa Corps) has direct financial incentives to maintain a level of insecurity that justifies its presence while exploiting the mineral revenues that fund its operations.
The security outcomes have been poor by any objective measure. Jihadist attacks in Mali, Burkina Faso, and Niger have increased since Wagner’s deployment, and the organisation has been credibly accused of atrocities against civilian populations, including the massacre at Moura in Mali in March 2022, in which French and UN investigations attributed the killing of approximately 500 civilians to Malian armed forces and foreign military personnel consistent with Wagner.
Russia’s strategic goals in the Sahel go beyond mineral extraction. Each expelled Western presence — French, American, German — reduces NATO’s intelligence coverage and power projection capacity in a region adjacent to the Saharan approaches to Europe. Russian information operations have succeeded in making anti-French sentiment an effective political commodity across the Sahel and beyond, damaging French influence and, by association, broader Western credibility on the continent.
China’s Cautious Engagement¶
China’s approach to the Sahel contrasts sharply with Russia’s. Beijing has invested in Sahelian infrastructure — roads, railways, telecommunications, and public buildings — through Belt and Road mechanisms, and Chinese companies are active in the mining sectors of several Sahelian states. But China has been notably reluctant to entangle itself in the security dimension, maintaining strict neutrality between the coup governments and their ECOWAS critics and declining to provide the kind of direct military support that Russia has offered.
This restraint reflects both principle — China’s non-interference norm — and pragmatism. The Sahel’s insecurity makes infrastructure investments genuinely risky; Chinese construction workers and engineers have been kidnapped and killed by jihadist groups. Beijing has calculated that maintaining working relationships with all regional actors, including ECOWAS states hostile to the coup governments, is more valuable than the exclusive partnerships that Russia has sought. China’s interest in Sahelian uranium, manganese, and other minerals is real, but the primary Chinese engagement with Africa remains in the more stable and economically significant coastal states.
Migration, Europe, and the Security-Development Nexus¶
The Sahel is the primary transit zone for migrants attempting the Central Mediterranean route to Europe. The city of Agadez in northern Niger, for years the hub of legal and illegal migration northward through the Libyan desert, became the focal point of a complex EU effort to stop migration before it reached the Mediterranean. The EU Emergency Trust Fund for Africa channelled hundreds of millions of euros to Niger for migration management, border control, and development programmes. Niger’s elected government cooperated; the post-coup government in Niamey suspended cooperation and repealed the anti-smuggling law that had formed the legal basis for migration controls, triggering a significant increase in cross-border movement.
The European migration calculus from the Sahel is inextricably linked to the broader security situation. Areas under jihadist control or in active conflict zones generate displacement — both internal and toward the Mediterranean — that is qualitatively different from purely economic migration. When Burkina Faso’s government evacuates populations from contested areas, or when jihadist groups systematically destroy agricultural infrastructure to deny revenue to governments, the resulting displacement creates migration pressure that no European border policy can fully contain.
Humanitarian Catastrophe¶
The UN Office for the Coordination of Humanitarian Affairs consistently ranks the Sahel among the world’s largest humanitarian emergencies. In 2023, more than 10 million people were displaced within the region — the largest number of internally displaced persons in Africa. Food insecurity affects an estimated 40 million people in the Lake Chad Basin and the Sahel zone, a figure that swells dramatically during drought years. Burkina Faso has experienced the fastest humanitarian deterioration: in 2020, fewer than 1 million people were displaced; by 2024, the figure exceeded 2 million, driven primarily by jihadist violence against civilian populations and the government’s practice of arming civilian self-defence groups whose activities have themselves generated cycles of communal violence.
The humanitarian system — UN agencies, international NGOs, bilateral donors — operates under severe constraints. Jihadist groups restrict access to territories they control. Several coup governments have expelled foreign NGOs or imposed bureaucratic obstacles to humanitarian operations. The combination of increased need and decreased access is creating a humanitarian catastrophe of growing severity.
US Counterterrorism: Presence and Expulsion¶
The United States built a significant counterterrorism infrastructure in the Sahel during the 2010s, centred on AFRICOM’s network of Cooperative Security Locations and forward operating bases. Air Base 201 near Agadez in Niger, completed in 2019 at a cost of approximately $110 million, was the centrepiece — a facility designed to support MQ-9 Reaper drone operations targeting al-Qaeda and Islamic State figures across the Sahel and Libya.
Following the July 2023 coup in Niger, the junta initially tolerated US presence while demanding renegotiation of the status of forces agreement. In March 2024, Niger formally ordered US forces to leave, giving the United States its most significant African base expulsion since the Cold War. The withdrawal, completed by mid-2024, represented a significant intelligence and targeting setback for US counterterrorism operations across the region.
Sources & Further Reading¶
- “Small Wars, Faraway Places: The Genesis of the Modern World” by Michael Burleigh — Historical context for great-power involvement in peripheral conflicts, with chapters directly relevant to the French Sahel strategy and its colonial antecedents.
- “The Jihadi Who Turned to Jesus” by Mahamadou Sawadogo — First-person account of radicalisation and deradicalisation in the Sahel, providing essential ground-level perspective on the jihadist appeal.
- “Africa’s Long Road Since Independence: The Many Histories of a Continent” by Keith Somerville — Comprehensive account of post-colonial African political trajectories, including the specific governance failures that created conditions for jihadist exploitation.
- “Russia in Africa: Expanding Influence and Fueling Instability” by Judd Devermont and Jon Temin (CSIS Report) — Policy analysis of Wagner Group operations and Russian strategic goals across the continent.
- “The Looming African Jihad” by Luca Raineri — Academic analysis of the structural factors — governance deficit, marginalisation, demography — that explain jihadist expansion in the Sahel beyond the security-focused explanations dominant in policy circles.