What was the outcome of the Spanish-American War?

Answer 1

The Americans won with ease because Spain was left alone to fight.

(pg. 610 "The American People Creating A Nation & A Society" Volume Two Since 1865)

It was a US victory resulting in:

1. Cuban independence (with US restrictions).
2. The annexation of Puerto Rico as a US Territory.
3. The annexation of Guam as a US Territory.
4. The Philippine American War.

An American victory, the end of the New World Spanish Empire, the beginning of the Philippine American War, Cuban Independence and the transfer of the former Spanish Colonies of Guam and Puerto Rico to the United States as a result of the 1898 Treaty of Paris.

Answer 2

Spain ceded Puerto Rico and Guam to the United States