The Platt Amendment changed the outcome of the Spanish-American War for Cuba. It gave Cuba access to lands all around the world. Cuba was cut off from the rest of the world by it. As a result, the US gained sovereignty over Cuba. Cuba was awarded independence from Spain.
The Spanish-American War had started in 1898, and the Platt Amendment, an amendment to a U.S. army appropriations bill, set the conditions for the United States to stop its military occupation of Cuba and "leave the government and governance of the island of Cuba to its people."
The amendment was mostly written by Secretary of War Elihu Root, despite being named for Connecticut Senator Orville Platt. Before the departure of American forces and the handover of sovereignty could start, the Cuban government had to accede to eight requirements outlined in the Platt Amendment.
The platt amendment changed the outcomes for Cuba. It allowed Cuba to go to places all over the world. It isolated Cuba from the rest of the world. As a result, Cuba came under US control. Spain granted Cuba its independence.
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