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an alliance between the U.S. , canada , and some western european nations -
the military supplied west berlin with food and other supplies by the air -
a defense treaty by the soviet union with seven other soviet satellites states -
a basketball sized satellite that was the first man made satellite to make it around earth -
a barbwire and concrete wall dividing east and west berlin -
the U.S. leaders and the soviet union started a 13 day military stand off -
edwin aldrin was the first humans to land on the moon -
five days after half million people in east berlin started to protest the berlin wall was dividing east and west berlin