Basilan is an island province at the southern tip of the Zamboanga Peninsula, separated from Zamboanga City by a narrow strait. It is part of the Bangsamoro Autonomous Region in Muslim Mindanao (BARMM), and it is predominantly Muslim in population and character. The island is forested, agricultural, and has spent much of the past thirty years living with the consequences of armed conflict.
Isabela City is unusual in Basilan's context — it is the provincial capital but it is not part of the province administratively, having been constituted as an independent city in 2000. It is predominantly Christian in population, a product of 20th-century migration from Visayas. The rest of the island is overwhelmingly Muslim.
The Yakan are the indigenous Muslim people of Basilan, distinct from the Tausug of Sulu and the Maguindanao of the mainland. They are known for geometric woven cloth — intricate patterns in primary colors on cotton fabric — that is among the most technically demanding textile work in the Philippines.
Basilan's economy rests on rubber, coconut, and abaca cultivation. The island is one of the Philippines' main rubber-producing areas, with large plantation estates established during the American period. The forests have been significantly reduced by agricultural conversion over the past century.