Sorry if I don't understand the question very well.
Explanation:
Europe, more particularly Western Europe, benefited most from social, technological, and economic change from 1200 and 1500. The growth of cities and commerce brought western Europe into contact with the wider world.
Answer: there were two immediate ones: America's support the ongoing struggle by Cubans and Filipinos against Spanish rule, and the mysterious explosion of the battleship U.S.S. Maine in Havana Harbor.