The correct answer to this open question is the following.
I consider the Marshall plan was successful in that it helped to recovery Western Europe after so much destruction provoked by World War II. The Marshall plan was crafted in 1948 by George Marshall, who was the Secretary of State of the United States. The plan allocated approximately $15 billion to reconstruct many places in Europe.
On the other hand, the Berlin Airlift was a successful decision because it allowed the allies to transport food, water, and supplies to West Berlin after Soviet leader Joseph Stalin ordered to close any entries to Berlin. If not for the airlift plan, many people could have died in that part of Germany.
