Mindanao (Tagalog: Kamindanawan) is the second largest and southernmost major island in the Philippines. It is also the name of one of the three island groups in the country (the other two being Luzon and the Visayas), consisting of the island of Mindanao and smaller surrounding islands. Davao City is the largest city in Mindanao. Of the island's population of 21,968,174 (according to the 2010 census) 10 percent is Muslim.
Mindanao is the only geographical area of the Philippines with a significantly large Muslim presence. The southernmost part of Mindanao, particularly Maguindanao Province, Lanao del Sur, Sulu, and Tawi-tawi provinces (part of the Autonomous Region of Muslim Mindanao (ARMM), are home to a sizeable Muslim population. Due to widespread poverty and religious differences, the island has seen a communist insurgency as well as armed Moro separatist movements.
Source: Wikipedia
Mindanao is the only geographical area of the Philippines with a significantly large Muslim presence. The southernmost part of Mindanao, particularly Maguindanao Province, Lanao del Sur, Sulu, and Tawi-tawi provinces (part of the Autonomous Region of Muslim Mindanao (ARMM), are home to a sizeable Muslim population. Due to widespread poverty and religious differences, the island has seen a communist insurgency as well as armed Moro separatist movements.
Source: Wikipedia