This is a quote from the agreements made by the Allied Powers at the Yalta Conference. Tin soldiers and Nixon coming, We're finally on our own. This summer I hear the drumming Four dead in Ohio

How did the actions of the Soviet Union go against this agreement?

A)The Soviet Union annexed all of Eastern Europe.

B)The Soviet Union established communist governments in Eastern Europe.

C)The Soviet Union protected free elections throughout Eastern Europe.

D)The Soviet Union withdrew its influence from Eastern Europe.