People who supported imperialism claimed that it was the natural progression of civilized countries and races to expand. Expansion in a way became a matter of race. Americans were part of the great Anglo-Saxon race, which means that, like their English cousins, they were of a superior race and destined for an empire of their own.
The workforce changed dramtically because of the presence of women. Women eplaced men in a wide variety of jobs as a result of the war. Although many were demobilsed after the war, women continued to play an important role in the workfroce.