The Moro Islamic Liberation Front is an Islamist group based in Mindanao seeking an autonomous region of the Moro people from the central government. The group has a presence in the Bangsamoro region of Mindanao, the Sulu Archipelago, Palawan, Basilan, and other neighbouring islands. The armed wing of the group was the Bangsamoro Islamic Armed Forces (BIAF), although the name of its parent organization, the MILF, was often used to refer to the BIAF. In July, 2018, the Philippine government passed the Bangsamoro Organic Law, giving more autonomy to Muslims. In return, MILF announced that it would disarm its 30,000 fighters.

Maguindanao was a province of the Philippines located in the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM). From 2014 to 2022, its provincial capital was Buluan, but the legislative branch of government, the Maguindanao Provincial Board, convened at the old provincial capitol in Sultan Kudarat. It bordered Lanao del Sur to the north, Cotabato to the east, Sultan Kudarat to the south, and Illana Bay to the west.