I believe the answer to your question is. <span>All food and supplies were sent to soldiers, while civilians starved at home.</span>
In general, the new technology of the 1920s led to a more connected, mobile society. The Roaring Twenties were a decade of prosperity in the United States. Technology and innovation were a large part of this prosperity, and impacted the lives of average Americans.
I think the United States help Western European countries regain their economic strength in order to hold off the threat of communism by initiating the Marshall Plan.
Lester Frank Ward, an American sociologist, botanist and
paleontologist believed that one of the government’s primary roles was to
protect the citizens from robber barons by regulating these big businesses. He
talked about it in his published 2 volume work Dynamic Sociology.