Spanish–Moro conflict
The Spanish initiated the conflict by conquering the Philippines and invading Moro territory in an effort to subjugate the region to their rule since the 1500s. When the Spanish conquered the Muslim Kingdom of Maynila, a vassal of the Sultanate of Brunei, the Islamic rajah, Rajah Sulayman resisted the Spanish. Manila then became the capital of the Spanish Philippines after the conquest, with the Spanish forcibly converting people to Catholicism. The Spanish–Moro Wars started with the Castille War, a war between Spaniards and the Sultanate of Brunei. (The term "Moro" at this time included Muslim Tagalogs who were ruled by the Sultanate of Brunei).
Military history of the Philippines
The military history of the Philippines is characterized by wars between Philippine kingdoms and its neighbors in the precolonial era and then a period of struggle against colonial powers such as Spain and the United States, occupation by the Empire of Japan during World War II and participation in Asian conflicts post-World War II such as the Korean War and the Vietnam War. The Philippines has also battled a communist insurgency and a secessionist movement by Muslims in the southern portion of the country.