source: Vanguard (Nigeria); New Telegraph; Sun (Nigeria); HumAngle; Twitter; Concise News; Daily Post (Nigeria)
actor1: Islamic State (West Africa) - Lake Chad Faction and/or Boko Haram - Jamaatu Ahli is-Sunnah lid-Dawati wal-Jihad
actor2: Debiro Communal Militia (Nigeria)
location: Debiro
notes: On 25 May 2020, Boko Haram attacked Debiro, Tarfa and Dakwaima in Biu LGA (Borno) and destroyed 90 houses and a church building. Local militias repelled the attack and killed 3 BH fighters. Fatalities split between 3 events.