How did the soviet union's system of government to create conflict with the united states after ww2

The Soviet system of government did not allow its people to choose their own leaders (it was a communist totalitarianism/dictatorship rather than a democratic government). The United States thought this was wrong, thus inciting their intervention in WWII against the Russians.

The Soviet system of government did not allow its people to choose their own leaders  The United States thought this was wrong, thus inciting their intervention in WWII against the Russians.

The tried to make the government smaller by making the government smaller