What happened
Africa's borderlands — the Sahel's tri-border area, the Lake Chad Basin, eastern DRC's border with Rwanda and Uganda, the Kenya–Somalia frontier, and the Libya–Niger–Chad triangle among others — continue to function as the continent's primary incubators of armed-group activity, smuggling economies and displacement crises. ACLED and Crisis Group reporting through 2026 consistently shows violent-event density concentrated in these border zones rather than in national capitals or core territory, reflecting the limited reach of state security forces into peripheral regions.
Why it matters
Borderlands matter disproportionately to Africa's risk picture because they combine weak state presence with cross-border mobility for armed actors, meaning conflicts rarely stay contained within a single country's territory. JNIM and Islamic State Sahel Province move fluidly across the Mali–Niger–Burkina Faso tri-border area; ADF and other armed groups exploit the DRC–Uganda border; Al-Shabaab uses the porous Kenya–Somalia frontier. For any organisation with regional operations, a border-zone crisis in one country is rarely a purely national risk event — it typically has second-order effects in neighbouring states within weeks.
How the threat is evolving
The trend across most of these borderlands is towards deeper armed-group entrenchment and more sophisticated governance-substitution — armed actors increasingly tax trade, adjudicate disputes and provide rudimentary services in areas the state has effectively vacated, a dynamic well documented in JNIM-controlled areas of central Mali and parts of the Lake Chad Basin under Boko Haram/ISWAP influence. Regional counter-insurgency cooperation has been inconsistent: some border-security initiatives (multinational joint task forces) have degraded in capacity even as the threat has grown, while others (AU and bilateral initiatives in the Horn) show intermittent progress.
- JNIM and Islamic State Sahel Province's continued freedom of movement across the Mali–Niger–Burkina Faso tri-border area.
- ADF and allied armed-group activity along the DRC–Uganda border despite periodic joint military operations.
- Al-Shabaab's sustained cross-border operational reach along the Kenya–Somalia frontier.
- Persistent smuggling and trafficking economies in the Libya–Niger–Chad triangle.
- Degraded capacity of the Multinational Joint Task Force against Boko Haram/ISWAP in the Lake Chad Basin.
Security implications
Organisations with cross-border operations — logistics corridors, extractives concessions, agricultural supply chains — should assess border-zone risk as a distinct category from national-capital risk, since threat actors, response capability and even the identity of the de facto governing authority can differ sharply within a few hours' drive of a border crossing. Journey management and route risk assessment need to be refreshed more frequently in these zones than standard country risk-review cycles typically allow for.
Business implications
Cross-border trade, transport and extractives operations face compounding risk from informal taxation by armed actors, unpredictable customs and security-force conduct that varies significantly between formal policy and practice on the ground, and exposure to smuggling and trafficking networks that can create inadvertent compliance risk for companies moving goods through these corridors. Insurance and risk-transfer arrangements should explicitly address border-zone transit risk rather than relying on national-level country risk ratings.
NGO/humanitarian implications
Borderlands generate a disproportionate share of Africa's humanitarian caseload — displacement, protection needs and access constraints are all more acute in these zones than the national averages suggest. Agencies operating near borders should build negotiation capacity with multiple, often informal, local authorities and armed actors rather than assuming a single national-government relationship will secure access, and should coordinate closely with neighbouring-country operations given how quickly population movements and security dynamics cross borders.
- Treat border-zone risk assessment as distinct from and more dynamic than national capital-based ratings.
- Build multi-actor access negotiation capacity for zones with fragmented or contested local authority.
- Coordinate cross-border programming and information-sharing with neighbouring-country operations.
- Track regional security-cooperation initiatives (joint task forces, AU missions) for signs of capacity change.
What to monitor next
Watch ACLED's sub-national event data for shifts in border-zone violence concentration; monitor the operational status of regional security-cooperation bodies such as the Multinational Joint Task Force and AU-backed initiatives in the Horn; and track UNHCR and IDMC displacement reporting for cross-border population-movement trends that often precede wider regional destabilisation.