source: HumAngle; Nigeria Punch; Vanguard (Nigeria)
actor1: Islamic State (West Africa) - Lake Chad Faction
actor2: Military Forces of Nigeria (2015-)
location: Rann
notes: On 3 December 2021, Nigerian troops assisted by the air force clashed with ISWAP militants that launched an attack on a military base in Rann (Kala Balge, Borno). Seven soldiers, including the commanding officer, and 24 militants were killed.