source: AFP
actor1: Islamic State (West Africa) and/or Boko Haram - Jamaatu Ahli is-Sunnah lid-Dawati wal-Jihad
actor2: Military Forces of Nigeria (2015-)
location: Mairari
notes: 17 December. Boko Haram stormed a military base in Mairari, 10km outside Monguno, and briefly seized it. Nigerian army sent reinforcements and re-captured the post on the same day. One soldier killed in the clashes.