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Boko Haram’s JAS Faction Attacks ISIS Positions on Lake Chad Islands, Claims Rivals Fled
Video released by the Jama’atu Ahlis Sunna Lidda’awati wal‑Jihad wing of Boko Haram shows an assault on Islamic State‑linked positions on Lake Chad islands, with attackers heard saying their ISIS rivals were running away.
A faction of Boko Haram has released footage of an assault on positions held by Islamic State‑linked militants on islands in Lake Chad, highlighting fighting between rival jihadist groups in a critical border region.
The video, attributed to Jama’atu Ahlis Sunna Lidda’awati wal‑Jihad (JAS), shows gunmen attacking what they describe as ISIS (ISIL) positions on the lake’s islands. During the attack, the fighters can be heard saying "They are running away," which JAS presents as proof that the Islamic State militants fled.
There is no independent confirmation of casualties, territorial changes or the broader outcome, and the material offers only the attackers’ perspective on the clash.
Lake Chad’s islands, shared between Nigeria, Niger, Chad and Cameroon, have for years provided cover and supply routes for armed groups. Clashes in this area are hard for national forces to monitor, and civilians living around the lake can find the front line shifting with little warning.
For local communities, fighting between JAS and ISIS adds another layer of risk. People who depend on the lake for fishing, grazing or trade may be caught between rival groups seeking recruits, intelligence or unofficial taxes, as well as between those groups and national militaries.
For regional armies, the confrontation cuts both ways. Infighting can weaken extremist organisations by diverting manpower and resources into internal battles. It can also complicate operations by creating fast‑moving and unpredictable front lines that do not map neatly onto state borders, and by triggering retaliatory attacks against villages seen as sympathetic to one side.
The incident underscores the fragmented nature of jihadist movements in the Lake Chad Basin and the wider Sahel, where local loyalties and ties to broader networks such as ISIS coexist and sometimes collide.
Key developments to watch include any further media statements from JAS or ISIS‑aligned factions about follow‑up attacks, confirmation from national militaries of clashes in the lake’s island zones, and reports of new displacement or access restrictions for civilians who rely on Lake Chad for their livelihoods.