How did the returning veterans of World War I and immigrants come into conflict?

The First World War brought an end to one of the biggest periods of immigration in American history. During the decade leading up to the war, an average of 1 million immigrants per year arrived in the United States, with about three-quarters of them entering through the Ellis Island immigration station in New York Harbor. The United States up to this point had an “open door” immigration policy, with no limit on the number of people who could enter the United States. Those arriving simply had to pass a medical and legal inspection to show that they would not pose a danger or burden to their new country — and 98% of those arriving at Ellis Island passed.

Explanation:

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the lowest among the social higher rank were the working class. this class remained detached to the political progression   of the country and was hostile to the other two classes

peace keepers

idealism to be spread

riches kept