source: Defense Post; Vanguard (Nigeria); Twitter
actor1: Islamic State (West Africa) - Lake Chad Faction
actor2: Military Forces of Nigeria (2015-)
location: Gubio
notes: On 20 May 2019, ISWAP launched an attack on a military camp in Gubio (Gubio, Borno). ISWAP looted the post and stole trucks and vehicles. NAF confirmed three soldiers killed, six injured and five ISWAP fighters killed. ISWAP later claimed that 20 soldiers were killed.