If you are referring to "fdr" giving eastern Europe to the Soviets, I have two questions for you
1. how old are you
2. have you ever heard of the 1945 Yalta conference
After the agreements reached at Yalta were made public in 1946, they were harshly criticized in the United States. This was because, as events turned out, Stalin failed to keep his promise that free elections would be held in Poland, Czechoslovakia, Hungary, Romania, and Bulgaria. Instead, communist governments were established in all those countries, noncommunist political parties were suppressed, and genuinely democratic elections were never held.
Not that it is any of your business but I am old enough to be your grandfather.
So FDR could just wave his hand and two million Soviet troops and thousands of tanks go away?
We never had control of Eastern Europe outside of FantasyLand and the American people would have NEVER stood for an attack on our ally. They were sick of the killing and would not accept the cost of millions more.
You forget the Soviets had just beaten back probably the finest military in the world. Read a history book.