Persecution of Muslims
The Philippines is predominantly a Christian society with a complicated history of relations between Islam and Christianity. Despite historic evidence of Islamization spreading throughout the islands in the 13th–16th centuries, the archipelago came under Spanish rule in the 16th century. The Spanish proselytized many natives, and labelled those who remained Muslims as "Moro", a derogatory term recalling the Moors, an Islamic people of North Africa who occupied parts of Spain for several centuries. Today, this term "Moro" is used to refer to the indigenous Muslim tribes and ethnic groups of the country. When the Spanish came to the Philippine islands, most of the natives in Luzon and Visayas were pagans with Muslim minorities, and while Spanish proselytized many natives, many Muslims in Luzon and Visayas were not exempted by the Spaniards from the Spanish Inquisition, wherein Muslims to become Catholics or die for their faith. Those who remained Muslims are only the natives of Mindanao and Sulu which the Spaniards did not invade or had control of only briefly and partially.
History of the Philippines
In 1578, the Castilian War erupted between the Christian Spaniards and Muslim Bruneians over control of the Philippine archipelago. On one side, the newly Christianized Non-Muslim Visayans of the Kedatuan of Madja-as and Rajahnate of Cebu, plus the Rajahnate of Butuan (which were from northern Mindanao), as well as the remnants of the Kedatuan of Dapitan had previously waged war against the Sultanate of Sulu, Sultanate of Maguindanao and Kingdom of Maynila, then joined the Spanish in the war against the Bruneian Empire and its allies, the Bruneian puppet-state of Maynila, Sulu which had dynastic links with Brunei and Maguindanao which was an ally of Sulu. The Spanish and its Visayan allies assaulted Brunei and seized its capital, Kota Batu. This was achieved as a result in part of the assistance rendered to them by two noblemen, Pengiran Seri Lela and Pengiran Seri Ratna. The former had traveled to Manila to offer Brunei as a tributary of Spain for help to recover the throne usurped by his brother, Saiful Rijal. The Spanish agreed that if they succeeded in conquering Brunei, Pengiran Seri Lela would indeed become the Sultan, while Pengiran Seri Ratna would be the new Bendahara. In March 1578, the Spanish fleet, led by De Sande himself, acting as Capitán General, started their journey towards Brunei. The expedition consisted of 400 Spaniards, 1,500 Filipino natives and 300 Borneans. The campaign was one of many, which also included action in Mindanao and Sulu.