What were the consequences of the Spanish American War?

The United States of the 19th century and the United States of the 20th century differ a great deal. In most of the 19th century, the US was isolationist and did not get involved much in the affairs of the world. However, by the start of the 20th century, the US began to get involved a greater amount in world affairs. The Spanish-American War (1898) established the United States as a world power and caused the …

…of issues for the United States. First of all, it caused the United States to treat the Filipinos in a similar manner to which Britain treated its colonies in the late 1770s, which led to a great amount of dissention in the US with organizations such as the Anti-Imperialist League. The Philippines also were an "Achilles heel" because it was so near to Japan. This would be made much more apparent during World War II.