What happen in battles the Philippines and Puerto Rico American forces were joined by?

In the battles in the Philippines and Puerto Rico, American forces were joined by local rebels and insurgents who were fighting against the Spanish colonial regime. In the Philippines, the American forces were joined by the Filipino nationalist movement, led by Emilio Aguinaldo, which had been fighting for independence from Spain since 1896. In Puerto Rico, the American forces were joined by the Puerto Rican Autonomist Party, which was led by Luis Muñoz Rivera and advocated for greater autonomy within the Spanish Empire.