source: UN (unspecified)
actor1: Islamic State (West Africa) - Lake Chad Faction and/or Boko Haram - Jamaatu Ahli is-Sunnah lid-Dawati wal-Jihad
actor2: Military Forces of Cameroon (1982-)
location: Bonderi
notes: 21 May. Military forces clash with Boko Haram members in Ardori, near Bonderi of Kolofata. 1 civilian and 1 soldier are killed in the fighting, as well as a Boko Haram member shot (coded as an injury) and buildings burned.