Answer:
The American annexation of the Philippines.
Step-by-step explanation:
The Anti Imperialist League was created in 1898, in response to the annexation of the Philippines by the United States. It was, basically, a group of conservative democrats who opposed the expansionist idea once defended by Manifest Destiny, as well as the militarization and strategic expansion ordered by the main leaders of the Republican Party. Its foundation lay in the principle of freedom and consensus of the governed, by means of which they said that America would act as a tyranny to try to expand its territories, by crushing the rights of the inhabitants of those lands.