The development of the Coastal Creep by JNIM in 2025 is a structural change in the security geography in West Africa as the group reached further operation into the fragile borderlands in the Gulf of Guinea as a part of Sahelian sanctuaries. Instead of being direct-territorial conquest, JNIM has progressed by infiltrating layers up, integrating into cross-border trade routes, inter-community conflicts, and informal economies that already exist in environments that are not tightly controlled by the state.
This growth has been most pronounced in the Benin-Niger-Nigeria tri-border region whereby violent cases increased by 86 percent in 2024-2025. The number of fatalities increased even further, up to over 260 percent within certain datasets, which portrays a shift in attacks to the pressure campaign. This is what analysts who monitor trend patterns in the field refer to as calculated force projection so that militant presence in peripheral areas of coast is normalized without leading to the complete-scale overreach of what constitutes full-scale territorial overreach.
Borderland violence surge and tactical adaptation of insurgent operations
The tri-border zone has taken the shape of the operational center of the JNIM coastal strategy with frequent ambush and targeted attacks on security facilities being a marker of a measured escalation as opposed to unthought-out violence. One notable instance of this was in early 2025 when an assault on one of the fortified positions in the Park W region of Benin led to several casualties among the security forces, making it clear that the group can break through even into what was once thought to be a defensible place.
Instead of ground-based operations, JNIM uses episodic invasions, which exceed state response capabilities, as the tactical pattern. This method ensures non-permanent occupation and provides long-term insecurity to the group without the need to be heavily occupied and vulnerable to military retaliatory attacks. In reality, this has resulted in normalization of insecurity in peripheral areas, as populations that live there have increasingly learned to live with sporadic military presence as a part of risk assessment.
Tri-border dynamics and operational corridors
The merger of Burkina Faso, Niger and the coastal states in west Africa has created a continuous operation region to JNIM. The routes facilitate the transportation of fighters, logistics and contraband goods, especially in those regions where the post coup governance destabilization has resulted in weak enforcement mechanisms. These vulnerabilities are exacerbated by the breakdown of coordinated border control after 2022 which has made cross-border movement with little opposition possible.
Fatality concentration and psychological impact strategies
Over 1,000 civilian deaths were registered in the year 2025, in the border areas of the affected regions such as Alibori, Borgou, Sokoto and Kebbi. According to security analysts, JNIM targeting rationale is shifting towards psychological disruption over territory acquisition. The group enhances the perceptions of the fragility of the state by concentrating high-casualty events in particular periods of time and reducing the operational expenses.
Structural enablers of coastal expansion and governance gaps
The persistence of JNIM’s Coastal Creep is closely tied to governance deficits and socio-economic fragmentation across borderland communities. Weak state presence in rural zones has created space for parallel authority structures, where armed groups compete with local militias and informal power brokers. In many cases, these environments allow insurgents to present themselves as arbiters of order in exchange for taxation or protection payments.
Environmental stressors have further intensified recruitment pressures. Climate variability, declining agricultural yields, and contested land use between farmers and herders have created conditions where armed groups can integrate into existing grievances. These dynamics are not purely opportunistic; rather, they represent systematic exploitation of long-standing structural vulnerabilities that predate the current insurgency wave.
Illicit economies and financing networks
The routes of smuggling between Sahel and coastal markets are still the key to the logistical sustainability of JNIM. The sources of income (gold mining areas), the routes of fuel trafficking, and the informal networks of trade offer both income and ways of escape. These economic networks bring about latent vulnerability to future infiltration even in places where there are no direct attacks like in northern Ghana.
ECOWAS fragmentation and strategic vacuum
The pull out of Sahel states of ECOWAS structures has greatly undermined coordination in the region. The lack of coherent implementation of border enforcement or integration of intelligence has left the coastal states to need to come up with security solutions of their own. This discontinuity has resulted in imbalanced capacity in the region, which JNIM has used to take advantage of the borders between jurisdiction.
Bilateral counterterrorism responses and operational recalibration
As a reaction to the growing threats, in January 2026, Benin and Nigeria signed a bilateral security agreement that is intended to limit JNIM crossover mobility. The framework incorporates shared patrols, intelligence sharing platforms as well as coordinated surveillance along critical frontier routes. These efforts have been complemented by French technical support in the form of aerial monitoring and reconnaissance support especially in the high risk areas.
Security experts like Enagnon Wilfried Adjovi have referred to the initiative as a hybrid model which integrates prevention and a quick-response capability. According to field data, synchronised patrols have already broken several recorded JNIM movements in the Alibori and Sokoto corridors, but the ability to maintain effectiveness in the long-run will be determined by the allocation of resources and political orientation.
Intelligence fusion and operational interoperability
The main aspect of the bilateral approach is the fact that it involves the integration of the intelligence systems of the Nigerian and Beninese security agencies. The previous experience of Nigeria with Boko Haram insurgency has shown the templates of their operations in terms of monitoring the work of mobile militants, and Benin has worked on the expansion of surveillance in the areas which were monitored insufficiently. The purpose of this fusion is to decrease the lag times in response to interception of cross-border.
Mobile patrol systems and tactical disruption
Mobile security units have emerged as the main weapon to combat the mobile nature of operation of JNIM. These units are not fixed in place like the fixed installations, but are dynamic and respond to changes in the patterns of threats. Nevertheless, the geography of the areas covered by forests and semi-arid regions still remains a problem to the scope of operations, which enables insurgents to use the geographic disguise and irregular movement paths.
Coastal state vulnerabilities and expanding regional pressure zones
JNIM has changed the hitherto peripheral areas into front lines of security by its coastal expansion. Since 2019, the northern departments of Benin have already been repeatedly invaded, which led to more serious attacks in 2025 that obliged to heavily militarize border infrastructure. Equivalent pressures can be found in Togo and some Cote d Ivoire whereby governments are gradually incorporating Sahel spillover situations in national defense.
Sea ports also bring another aspect of risk since the economies which are based on the coast offer more logistical avenues of illegal financing and transport. Although no documented major maritime operations have been established, security planners are starting to view the vulnerabilities of ports along with their surrounding areas as components of a wider threat mapping operation.
Regional fragmentation and evolving insurgent strategy
The disintegration of multilateral security arrangements has inadvertently made JNIM have strategic advantages. The group is able to apply pressure with minimal overstretching of its internal command structure by operating without being tied to national systems that are not linked. This distributed model enables it to be flexible to local resistance without losing its cohesion over its larger network.
Meanwhile, the move of JNIM to the coastal areas indicates a change in ambition of strategy. The group is now extending influence to economically important coastlines areas, instead of being confined to Sahelian lands. This is a change that is consistent with larger trends of insurgent evolution where mobility, taxation and psychological disturbance substitute traditional territorial domination.
Adaptive countermeasures and long-term containment challenges
Despite intensified bilateral cooperation, long-term containment of JNIM’s Coastal Creep remains structurally complex. Terrain advantages, fragmented governance, and adaptive insurgent tactics continue to constrain state responses. While coordinated patrols have demonstrated localized success, sustaining pressure across multiple dispersed corridors requires consistent funding, intelligence integration, and political continuity.
Broader stability will likely depend on addressing the underlying drivers of recruitment, including economic exclusion, environmental stress, and weak local governance structures. Without parallel investment in these areas, military containment risks producing only temporary displacement of insurgent activity rather than structural reduction.
As JNIM continues to recalibrate between Sahel strongholds and coastal penetration routes, the evolving security landscape raises a central uncertainty: whether West African states can transform fragmented bilateral responses into sustained regional resilience, or whether adaptive insurgent networks will continue to outpace institutional consolidation across the region’s most vulnerable borderlands.
