source: CAJ News
actor1: Military Forces of Nigeria (2015-)
actor2: Islamic State (West Africa) and/or Boko Haram - Jamaatu Ahli is-Sunnah lid-Dawati wal-Jihad
location: Maiduguri
notes: 04 June. Boko Haram ambushes a group of military forces in 'north-east' Nigeria (likely Borno State), killing five in the ensuing fire fight.