source: Daily Post (Nigeria); Vanguard (Nigeria)
actor1: Islamic State (West Africa) - Lake Chad Faction
actor2: Military Forces of Nigeria (2015-)
location: Mafa
notes: On 1 December 2019, presumed ISWAP fighters attempted to infiltrate Mafa (Mafa, Borno) but got repelled by Nigerian Armed Forces. Three ISWAP fighters were killed in the battle and equipment seized.