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).
Philippines
Bonifacio and the Katipunan started the Philippine Revolution in 1896. A faction of the Katipunan, the Magdalo of Cavite province, eventually came to challenge Bonifacio's position as the leader of the revolution and Emilio Aguinaldo took over. In 1898, the Spanish–American War began in Cuba and reached the Philippines. Aguinaldo declared Philippine independence from Spain in Kawit, Cavite on June 12, 1898, and the First Philippine Republic was established in the Barasoain Church in the following year.