Which country was decided a us protectorate under the platt amendment

The country of Cuba.

Hello there,

The Platt Amendment, an amendment to a U.S. army appropriations bill, established the terms under which the United States would end its military occupation of Cuba (which had begun in 1898 during the Spanish-American War) and "leave the government and control of the island of Cuba to its people."

Hope this helps!!

your answer is c i hope that