source: Guardian (Nigeria); HumAngle; Daily Post (Nigeria); Daily Leadership (Nigeria)
actor1: Islamic State (West Africa) - Lake Chad Faction
actor2: Military Forces of Nigeria (2015-)
location: Ala
notes: On 24 September 2021, Nigerian troops and CJTF militias were attacked with IEDs planted by ISWAP militants around Ala (Marte, Borno). Twelve soldiers were killed, while other sources reports twenty. An unspecified number were wounded.