What program offered reconstruction aid to western europe following world war ii and to limit the appeal of communism in the region?

The program offering reconstruction after WWII was called the European Recovery Program (or the Marshall plan) (April 1948 - December 1951), sponsored by the United States.

It was program involving economic rehabilitation of 17 Western and Southern European countries to create stable conditions in which democratic institutions could flourish. The United States feared that the unemployment, poverty and dislocation of the post - World War II  period were reinforcing the appeal of communist parties to voters in the Western Europe.