source: Undisclosed Source
actor1: Islamic State (West Africa) - Lake Chad Faction
actor2: Military Forces of Nigeria (2015-)
location: Gashigar
notes: On 7 September 2021, ISWAP claimed an armed clash against joint forces of Nigerian and Nigerien patrol troops in Gashigar (Mobbar, Borno). Two vehicles belonging to the troops were damaged, those inside were injured and the rest fled.