source: Undisclosed Source
actor1: Islamic State (West Africa) - Lake Chad Faction
actor2: Military Forces of Nigeria (2015-)
location: Buni Yadi
notes: On 14 September 2021, ISWAP claimed an attack against Nigerian troops using automatic weapons that led to the killing of two soldiers in Buni Yadi (Gujba, Yobe). The rest of the troops fled.