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The Marshall Plan was a program implemented by the United States in the aftermath of World War II to provide economic aid to Western European countries. It was initiated by U.S. Secretary of State George Marshall in 1947 and implemented in 1948. The Marshall Plan aimed to rebuild war-torn European economies and prevent the spread of communism by providing financial assistance for the reconstruction of infrastructure, modernization of industry, and stabilizing currencies. The Marshall Plan played a significant role in the economic recovery of Western Europe, contributing to the growth of democratic institutions and helping to prevent the spread of communism during the Cold War. It is widely considered one of the most successful foreign policy initiatives in U.S. history.