Bangsamoro, officially the Bangsamoro Autonomous Region in Muslim Mindanao, is an autonomous region in the Philippines, located in the southwestern portion of the island of Mindanao. Replacing the Autonomous Region in Muslim Mindanao, the BARMM was formed with the ratification of its basic law, the Bangsamoro Organic Law, followin…Bangsamoro, officially the Bangsamoro Autonomous Region in Muslim Mindanao, is an autonomous region in the Philippines, located in the southwestern portion of the island of Mindanao. Replacing the Autonomous Region in Muslim Mindanao, the BARMM was formed with the ratification of its basic law, the Bangsamoro Organic Law, following a two-part legally binding plebiscite in Western Mindanao held on January 21 and February 6, 2019. The ratification was confirmed a few days later on January 25 by the Commission on Elections.