Final answer:
The U.S. annexed the Philippines in 1899 after a fierce debate in the Senate.
Step-by-step explanation:
The subject of this question is History. The question is asking about the annexation of the Philippines by the U.S. in 1899.
After the Spanish-American War, the U.S. gained control over the Philippines and other territories.
The decision to annex the Philippines was met with fierce debate in the Senate.
President McKinley argued for annexation to maintain control and establish an American empire.
The annexation of the Philippines would have significant consequences and would lead to a war between U.S. troops and Filipino revolutionaries seeking independence.