First satellite to orbit the Earth. It was launched by the Soviet Union.

Agreement among the communist countries to come together and prevent any attack that may come from the United States or the United Kingdom against the Soviet Union.

In 1961, when the United States tried to invade Cuba and remove Castro. They failed.

Wall built down the middle of Berlin to show what side belonged to the communist government and what side belonged to the democratic government.

A ruthless leader, and he took control of Cuba and businesses there were owned by the United States in 1959.

Dividing line that went through Europe making it two separate areas, one communist and one not communist.

A technological competition between the two superpowers to see who could get into space first first.

Agreement among the democratic countries to use military force if needed to prevent the Soviet Union from attacking and occupying any more of Europe.

Ruler who has complete control of the country and will eliminate or kill anyone who is a threat.

Competition between the two superpowers to see which side could create and stockpile the most weapons and nuclear bombs.

Ruthless leader of the Soviet Union who led them into the Cold War. He had many people killed who threatened to take his place.

Time of tension between two superpowers, United States and Soviet Union.