Spanish-American War Breaks Out After the Spanish-American War, the Philippines, Puerto Rico, and Guam were taken from Spain. However, the control of these areas sparked debate. Many people didn't want the US to imperial especially since America had gained independence from Britain. Others however believed that the US should fulfill its destiny by becoming a superpower. In the end, the United States prepared the Filipinos for self-rule by building roads, railroads, hospitals, and by setting up school systems.