Why Nigeria and Its Sahelian Neighbours Are Drifting Apart — And Why It Matters for Security

Quick Summary: In December 2025, Burkina Faso detained a Nigerian military plane and its crew. This wasn’t just a travel mix-up—it revealed a growing political split between Nigeria and three neighbouring countries (Burkina Faso, Mali, and Niger) that have formed their own alliance. Meanwhile, terrorist groups are crossing borders freely, and the lack of cooperation makes everyone less safe.

The Incident That Sparked Headlines

Imagine driving to a mechanic for a routine car check-up. Mid-journey, your engine sputters, so you pull into the nearest safe spot—a neighbour’s driveway. Instead of helping, the neighbour calls the police and says you trespassed.

That’s essentially what happened in December 2025:

Who Are the Main Players?

Nigeria

• West Africa’s largest economy and most populous country
• Faces security threats from Boko Haram and ISWAP (Islamic State West Africa Province) in its northeast

The Alliance of Sahel States (AES)

Formed in September 2023 through the Liptako-Gourma Charter (named after the tri-border region where Mali, Burkina Faso, and Niger meet).

ECOWAS (Economic Community of West African States)

• Regional bloc of 15 countries promoting economic integration and cooperation
• The three AES countries withdrew on January 29, 2025, effective immediately

The Big Picture: A Region Splitting in Two

The Political Divide

1. July 2023: Niger’s president overthrown in a coup → ECOWAS threatens sanctions and military intervention
2. September 2023: Mali, Burkina Faso, Niger form the AES — a mutual defence pact
3. January 2025: AES countries formally leave ECOWAS
4. July 2025: Nigerian President Bola Tinubu says insecurity in AES countries worsens Nigeria’s security
5. December 2025: Nigerian plane detained in Burkina Faso
6. April 2026: Coordinated attacks in Mali kill Defence Minister (claimed by JNIM + Tuareg rebels)

Important Point: Each flashpoint has hardened positions rather than softened them. An anonymous Malian analyst told Al Jazeera: "Successive confrontations… have hardened positions rather than softened them."

Security Threats Don’t Respect Borders

The Terrorist Groups Operating Across the Region

ELI5 Analogy: Imagine four houses in a row with no fences. Burglars move freely between them. If the homeowners stop talking to each other, the burglars win.

The Gaps Getting Wider

1. Niger left the MNJTF (Multinational Joint Task Force) in March 2025

   • MNJTF = Regional force fighting terrorists around Lake Chad Basin
   • Niger said it needed to protect its oil assets
   • Result: "Significant gap in regional counterterrorism cooperation" — Abiola Sadiq, Nigerian resilience adviser

2. ISWAP exploits the Diffa region (southeast Niger) → moves easily into Nigeria’s Borno and Yobe states

3. JNIM and FLA teamed up in April 2026 — unusual because they have different goals but both oppose Mali’s military government

4. Liptako-Gourma region (tri-border area) = terrorist highway with weak coordination

The Roots of the Crisis: A History Lesson

The Gaddafi Connection (2011)

Professor Bolaji Akinyemi (former Nigerian Foreign Minister) explains:

"When Gaddafi was overthrown in Libya in 2011, armed groups and weapons flowed south. They couldn’t cross the Mediterranean, so they came down into the Sahel. Nigeria became a target."

Simple version: Libya’s collapse = open armoury + trained fighters moving south → destabilised Sahel → spillover into Nigeria.

Trade Caught in the Crossfire

Why Trade Matters

• Nigeria = West Africa’s biggest economy = massive market for Sahelian goods
• Established cross-border trade routes and labour migration patterns
• Millions depend on daily/weekly border crossings

ECOWAS Temporary Measures (After Jan 29, 2025 Exit)

For Traders & Truckers: "Will my tomatoes rot at the border? Do I need new papers? Nobody knows yet."

Expert Voices: What the Smart People Say

1. Professor Bolaji Akinyemi (Former Foreign Minister, Nigeria)

• Security crisis traces to post-Gaddafi Libya (2011)
• Hopes for "good sense and diplomacy" to prevail
• Warns: Bandits/terrorists have been flowing south for over a decade

2. Abiola Sadiq (Nigerian Resilience Adviser)

• Niger’s MNJTF exit = "significant gap in counterterrorism cooperation"
• ISWAP in Diffa + poor coordination = terrorists move freely
• Deteriorating Nigeria-AES relations = more space for ISWAP

3. Anonymous Malian Analyst (International Relations)

• Positions have hardened with each confrontation
• Warning: "Unless Abuja and Sahelian capitals find a channel that survives political disagreements, armed groups… will exploit the widening divide."
• Bottom line: "West Africa splitting into two security architectures that don’t talk to each other, even as the threat becomes more transnational."

Why This Should Worry Everyone

The Vicious Cycle in 4 Steps

1. Political distrust → Countries stop sharing intelligence
2. Security gaps appear at borders → Terrorists exploit them
3. Attacks increase → Each side blames the other
4. More distrust → Back to step 1

The Paradox

Nigeria and the AES countries face the SAME enemies (ISWAP, JNIM, bandits) but have built SEPARATE, non-communicating defence systems.

Summary: The Big Takeaways

The Core Problem: Politics divided the neighbours. Terrorism united the threats. Until politics catches up to reality, the bad guys win.

FAQ: Your Questions Answered

Q1: What is the Alliance of Sahel States (AES)?

A: A defence pact formed in September 2023 by Mali, Burkina Faso, and Niger after they all experienced military coups. They promised to help each other if attacked — by terrorists or outsiders.

Q2: Why did they leave ECOWAS?

A: After Niger’s 2023 coup, ECOWAS threatened sanctions and possible military action to restore the elected president. The three countries felt ECOWAS was interfering in their sovereignty, so they created their own bloc and left.

Q3: What is the MNJTF and why does Niger leaving matter?

A: The Multinational Joint Task Force includes Nigeria, Niger, Chad, Cameroon, and Benin. It fights Boko Haram/ISWAP around Lake Chad. Niger’s departure creates a hole in the security net — like a goalkeeper leaving the field mid-game.

Q4: Are ISWAP and JNIM the same group?

A: No. ISWAP is linked to ISIS (Islamic State). JNIM is linked to Al-Qaeda. They’re rivals globally but sometimes cooperate locally (like the April 2026 Mali attacks with Tuareg rebels).

Q5: Can ordinary people still cross borders?

A: For now, yes. ECOWAS said AES citizens keep visa-free rights "until further notice." But traders report confusion, delays, and fear of sudden rule changes. Long-term? Nobody knows.

Final Thought

West Africa’s terrorists don’t carry passports. They don’t care about ECOWAS vs AES. They only see open borders and divided enemies.
Until the governments start talking again — really talking — the people living along those borders pay the price.