Answer:
He created a trust that controlled ninety percent of the nations oil refineries. He purchased coal plants around the country to add to his business
They wanted to encourage more profitable imports for their nations as their economy was bad. However, other nations economies were bad as well, staunching the world economy even more.
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Truman adopted a policy of containment, in which the U.S. would attempt to prevent the spread of Communism but would not actively seek to regain territory already lost to Communism. He also announced the Truman Doctrine, a policy of aiding countries in danger of falling to Communism.