Answer :
Perhaps the greatest source of tensions between the United States and Cuba in the 1950s was "a
revolution that brought a communist to power," although there were other issues as well.
Answer:
a revolution that brought a communist to power
Explanation:
It was not the Cuban army that cause tension. Too far and unimportant as an isolated event. It wasn't the missile crisis since it happened in the 60s. It wasn't also the deportation of Cuban immigrants since there's nothing wrong with deporting illegals, generally speaking. What caused a great shift was the revolution that took down the government of Cuba and installed a communist dictatorship led by Fidel Castro.