Basilan Island
Basilan, officially the Province of Basilan (Chavacano: "Provincia de Basilan"; Tausug: "Wilaya' sin Basilan"; Yakan: "Wilayah Basilanin"; ) is an island province of the Philippines located primarily in the Bangsamoro Autonomous Region. Basilan Island is the largest and northernmost of the major islands of the Sulu Archipelago. It is just off the southern coast of the geographic Zamboanga Peninsula.