Why were Europeans eager to create supranational organizations after World War II?

Cities bombed, 40 million people died, communism spreading, Farms burned

Explanation:

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They needed a way to ensure peace and to create a strong democratic presents to combat the spread of communism

Explanation:

roosevelt, a progressive reformer, earned a reputation as a "trust buster" through his regulatory reforms and anti-trust prosecutions. his "square deal" included regulation of railroad rates and pure foods and drugs; he saw it as a fair deal for both the average citizen and the businessmen.