The closest the world came to war during the cold war was when the soviet union placed missiles on the caribbean island of a. aruba b. puerto rico c. cuba d. saint thomas

The correct answer is - c. Cuba.

When Fidel Castro took over Cuba and made it a communist country, the United States were right to be displeased and scared by that move, especially that the Soviet Union very soon became the closest friend, supporter, and defender of the Caribbean nation.

The Soviet Union was the arch enemy of the United States, and since the tension was so big between the two countries, and they were constantly threatening to each other with nuclear weapons, the Soviet Union decided to set missiles in Cuba. Cuba being so close to the United States, meant that any place can be destroyed without any problem.

The tension at those moments was so big, that the world was just one decision away from another, much more terrifying and devastating World War.

whats the video? can u send a link?