It is possible that BIFF participated in the Battle of Marawi of 2017. The Philippine military stated in May 2017 that BIFF fighters were among the Jihadists in the city, while Secretary of National Defense Delfin Lorenzana claimed in June 2017 that about 40 fighters of the group took part in the fighting. According to other reports, the group had not only contributed fighters to the battle, but also provided "logistical support" to the ISIL forces besieged in Marawi.