Complex sentence: Spaniards arrived in the island of Luzon on 1570, and after the quarrels and misunderstandings erupted between the Islamic natives and the Spaniards, both groups fought for the control of lands and settlements.
Split into simpler sentences: Spaniards arrived in the island of Luzon on 1570 and resulted in quarrels and misunderstandings among the inhabitants. After tensions erupted between the Islamic natives and the Spaniards, both groups fought for the control of lands and settlements.