A) They migrated to industrial cities to pursue economic advancement
There was a lot of urbanization and the development of cities and that called a lot of rural families to the cities where they pursued other jobs there.
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Developing the fur trade, converting the Native Americans
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<span>The policy became one of containing the spread of communism. That policy was the reason for about every foreign policy decision made. Examples would be Korean War, Vietnam War, maintenance of large military presence in both Germany and Korea.
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