in 1945 Truman and Stalin met at the potsdam conference. They agreed on some points but there were some problems about a nuclear bomb that had been dropped on Hiroshma.
In 1946, Winston Churchill visited the USA and warned America that an iron curtain was falling across Europe dividing east and west Europe and stopping nay movement from east to west germany.
In 1946 telegrams were sent that increased the tension between the USA and the USSR. the long telegram from kennan long to the USA and the Novikov telegram to the USSR.
In 1947 president Truman made a famous speech which became known as the Truman Doctrine. He said that Britan was putting out of support to greece as it was costly. The USA also started to provide Marshall Aid to countries that were not communist.
In 1948 Stalin tried to force the USA out of west berlin by starting a blockade stopping all roughts into berlin asn starving 2.2 million berliners.
The USA ant he UK organised an airlift to take supplies into west berlin where people were suffereing becuase of the blockaide taking 200000 flights to berlin full of supplies and raw materials.