United States became very concerned during the late 1800s, after Cubans were being treated poorly by Spain.
Wanting to proclaims war with Spain, when the USS Maine explodes on February 15, 1898, the Americans blamed it on Spain, even though later evidence showed it was an accident.
On April 25, 1898, Congress declared war on Spain.
Filipino rebels, led by Emilio Aguinaldo, joined the Americans after the Spanish-American War started.
Disappointment ran throughout the Philippines as instead of the United States, granting their independence, they began to debate on what to do with the islands.
American ships trapped the main Spanish fleet in Santiago, Cuba, being followed by heavy fighting. This war led to many deaths. On August 12, the Spanish signed a truce/treaty ending the war.