Platt Amendment - Aftermath

Aftermath

Following acceptance of the amendment, the United States ratified a tariff that gave Cuban sugar preference in the U.S. market and protection to select U.S. products in the Cuban market. Tomás Estrada Palma, who had once favored outright annexation of Cuba by the United States, became President of Cuba on May 20, 1902.

Most provisions of the Platt Amendment provisions were repealed in 1934 when the Treaty of Relations between the U.S. and Cuba was negotiated as a part of U.S. President Franklin Roosevelt's "Good Neighbor policy" toward Latin America. José Manuel Cortina and other members of the Cuban Constitutional Convention of 1940 eliminated the Platt Amendment from the new Cuban Constitution.

The long-term lease of Guantánamo Bay continues. The Cuban government under Castro has strongly denounced the treaty as a violation of article 52 of the 1969 Vienna Convention on the Law of Treaties, which declares a treaty void if procured by the threat or use of force. However, Article 4 of the Vienna Convention states that its provisions shall not be applied retroactively.