The soviets responded with its own military buildup, beginning an arms race that would go on for four decades.
Why was the Soviet Union a threat to the United States?
Because USSR was a mass mobilizing totalitarian dictatorship, which occupied most of Eastern Europe, killed and arrested political opposition and even ethnicities seen as a threat to Kremlin, and ran large and influental communist groups/parties in all the western democracies with an ultimate intent to influence…