Why did the us place economic sanctions against cuba?

The U.S. imposed economic sanctions against Cuba primarily in response to the Cuban Revolution and the nationalization of American-owned properties and businesses in the 1960s. The sanctions aimed to pressure the Cuban government to adopt democratic reforms and respect human rights. Additionally, the U.S. sought to contain the spread of communism during the Cold War, viewing Cuba as a significant geopolitical threat in the Western Hemisphere. Over time, these sanctions have evolved but largely remained in place due to ongoing political and ideological differences.