Read the CIA brief regarding the Cuban Missile Crisis. Why did Soviet ships turn back on their way to Cuba?

US ships had formed a naval quarantine around Cuba.
The Soviet Union had sworn not to interfere in Cuba.
Fidel Castro had proclaimed that the ships could not dock in Cuba.
The United Nations had issued a medical quarantine of Cuba.

US ships had formed a naval quarantine around Cuba.

Explanation:

The US formed a blockade to prevent the Soviets from assisting Cuba.

a. would be the answer : )

explanation:

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