What was president Truman's big complaint as far as what the United States conceded to the Soviet Union

The correct answer to this open question is the following.

Truman's big complaint as far as what the United States conceded to the Soviet Union was the following.

United States President Harry S. Truman's big complaint was that the Soviet Union was exerting to much pressure to control eastern European countries. After the Yalta Conference and the Postdam Conference, the Soviet Union exerted big influence and control over Poland and expanded its Communist form of Government into East Germany, Czechoslovakia, Rumania, Albania, and Hungary. We are talking about the beginning of the differences and confrontation that led these two countries into the Cold War years.