The speech delivered by Winston Churchill, when he used for the first time the expression "iron curtain" clearly established a border and an attitude of confrontation between the two blocs that have aroused in the European continent after WWII. On the Eastern side, the Soviet Union together with the states under its communist sphere and, on the other sid,e the Western powers that had won the war (France and UK) that were allies of the United States together with all the Western countries under their capitalist influence.
These were the two blocs that would be subsequently confronted during the Cold War.
The main reason why <span>Truman wasn't expected to win the 1948 election was because he had been a very uncharismatic and somewhat un-liked president under FDR. </span>