Tension was created because both the United States and the USSR wanted their ways of government spread over Europe, because Germany was split into two parts. One given to the US and the other to the USSR. The US side was influenced with US ideologies and the USSR part was made communist. The US did not like what the USSR was doing and the USSR did not like what the US was doing. So as tensions grew, both sides started to flex the newest technology they had created, and is known as the Cold War.
