The major battles of the Spanish American War were fought at Manila Bay in the Philippines (May 1, 1898), San Juan Heights or San Juan Hill in Cuba (July 1, 1898) and Santiago Bay in Cuba (July 3, 1898). The third of these battles desolated the Spanish fleet and forced their surrender a little over 2 weeks later.
As a result of this short-lived war between two Western colonial powers, Spain's efforts toward political influence in the Pacific were crushed. The Spanish government was forced to give up Cuba, Guam, Puerto Rico and the Philippines to the United States.
The U.S. also used the Spanish American War as a pretext to take over Hawaii.