The Marshall Plan (officially the European Recovery Program, ERP) was an American initiative to aid Western Europe, in which the United States gave $13 billion (approximately $130 billion in current dollar value as of August 2015) in economic support to help rebuild Western European economies after the end of World War II. The plan was in operation for four years beginning in April 1948. The goals of the United States were to rebuild war-devastated regions, remove trade barriers, modernize industry, make Europe prosperous again, and prevent the spread of communism. The Marshall Plan required a lessening of interstate barriers, a dropping of many regulations, and encouraged an increase in productivity, labour union membership, as well as the adoption of modern business procedures.
The Marshall Plan aid was divided amongst the participant states roughly on a per capita basis. A larger amount was given to the major industrial powers, as the prevailing opinion was that their resuscitation was essential for general European revival. Somewhat more aid per capita was also directed towards the Allied nations, with less for those that had been part of the Axis or remained neutral. The largest recipient of Marshall Plan money was the United Kingdom (receiving about 26% of the total), followed by France (18%) and West Germany (11%). Some 18 European countries received Plan benefits. Although offered participation, the Soviet Union refused Plan benefits, and also blocked benefits to Eastern Bloc countries, such as East Germany and Poland. The United States provided similar aid programs in Asia, but they were not called "Marshall Plan".