source: Undisclosed Source
actor1: Military Forces of Nigeria (2015-)
actor2: Islamic State (West Africa) - Lake Chad Faction and/or Boko Haram - Jamaatu Ahli is-Sunnah lid-Dawati wal-Jihad
location: Damboa
notes: On 2 May 2021, ISWAP/Boko Haram members clashed with the security forces in Damboa (Danboa LGA, Borno). Around 50 fighters were killed.