source: Sembe TV; Undisclosed Source
actor1: Military Forces of Cameroon (1982-) Rapid Intervention Battalion
actor2: Islamic State (West Africa) - Lake Chad Faction and/or Boko Haram - Jamaatu Ahli is-Sunnah lid-Dawati wal-Jihad
location: Kouyape
notes: On 18 May 2021, the army's rapid intervention forces ambushed Boko Haram fighters on the road from Sandawadjiri to Kouyape villages, Kolofata subdivision (Mayo-Sava, Extreme-Nord), killing 4 of them.