Which territory caused the most debate about imperialism for the U. S.?

One of the most notable instances of American imperialism was the annexation of Hawaii in 1898, which allowed the United States to gain possession and control of all ports, buildings, harbors, military equipment, and public property that had belonged to the Government of the Hawaiian Islands.

Explanation:

the government paid religious orders to provide basic education to native american children on reservations. in the late 19th and early 20th centuries, the bureau of indian affairs (bia) founded additional boarding schools based on the assimilation model of the off-reservation carlisle indian industrial school.