 This became evident when the Muslims repudiated the Moro province, a politico-military government in Mindanao lasting from 1903 to 1914, and the Moro Rebellion soon broke out.It is important to note that barely two months before the creation of the Moro province, the American colonial government declared and classified all unoccupied lands as public lands.Immediately after the declaration, American investments entered Mindanao and mass migration of Christians was encouraged.