source: Al Nabaa; Undisclosed Source
actor1: Islamic State (West Africa) - Lake Chad Faction
actor2: Military Forces of Chad (1990-2021)
location: Ngouboua
notes: Around 28 September 2020, ISWAP militants ambushed Chadian troops near Maria situated 31 km southwest of Ngouboua (Lac, Mamdi). Two Chadian soldiers and one civilian were reportedly killed.