background: after the war, the SU had set up communist governments in the eastern european countriesit controlled. however truman was worried about the spread of communism and came up with a doctrine to stop the influence of communism in europe. his doctrine was to give money and send troops to europe to fight against communism which was known as the truman doctrine. the marshall plan, carried out by the US secretary of state, george marshall went even further by giving economic aid to eastern european countries who had fought in WW2