Final answer:
Radio Martí is the radio station financed by the Federal government of the United States to combat communism and undermine Cuban President Fidel Castro.
Step-by-step explanation:
The radio station financed by the Federal government of the United States created to fight communism and promote the fall of Cuban President Fidel Castro is Radio Martí. Unlike Radio Free Europe which began broadcasting to Eastern Bloc countries in 1950, or Radio Liberty which started broadcasts to the Soviet Union in 1953, Radio Martí was targeted specifically at Cuba. This initiative reflects the broader context of the Cold War, where media and propaganda were used as tools to influence political ideology and undermine opponents.
The use of Radio Martí was part of a multifaceted approach by the U.S. to address the rise of communism so close to American shores, without direct military intervention. It should be noted that while the Bay of Pigs invasion was a failed attempt by the CIA-trained Cuban exiles to overthrow Castro, Radio Martí continued to broadcast as a form of psychological warfare, aiming to support internal dissent and promote democratic ideals within Cuba.