Answer:
The relationship between the U.S. and Cuba in the 1960s was the worst in the history of the two nations and was subject to possibly destructive tensions.
Step-by-step explanation:
In 1960, US imposed many restrictions to counterattacks the Cuban government for changing some of the US private assets into public assets.
After Fidel Castro came to power in 1961, there were a number of attempts made by the CIA to overthrow him. It was because the CIA believed that Fidel Castro's regime would prove to be a hazard to the regional dominance of the United States and that he may also help Russia in its anti-American activities.
Later, many presidents of America tried to unite both the nations during Cold War.