source: Twitter; Guardian (Nigeria)
actor1: Military Forces of Nigeria (2015-)
actor2: Islamic State (West Africa) - Lake Chad Faction
location: Sabongari Chambula
notes: On 14 December 2021, the Nigerian arm claimed to have ambushed ISWAP militants and engaged them in an armed clash at Sabongari Chambula (Madagali, Adamawa). Six militants were killed, several others fled with gunshot injuries; weapons and ammunitions were recovered. ISWAP claimed the attack, the killing of 10 soldiers, the seizure of two vehicles and brief control of the town before withdrawing.