source: Vanguard (Nigeria)
actor1: Boko Haram - Jamaatu Ahli is-Sunnah lid-Dawati wal-Jihad
actor2: Military Forces of Nigeria (2015-)
location: Pulka
notes: On 23 December 2019, Boko Haram (JAS) attacked a position of the Nigerian Armed Forces in Pulka (Gwoza, Borno) and got engaged in a gun battle. 4 BH fighters, including a suicide bomber, were killed.