19th and 20th century expansionism
... These ideas of expanding were dislike the United States’ former ideas on expansionism. ... International Darwinism is one example of new expansionism. ... Americas feelings toward expansionism were also changed by books such as The Interest of America in Sea Power. ... again showed its new feelings towards expansionism during the Insular Cases. ... In the late nineteenth and early twentieth century, expansionism was the topic that everyone was talking about. ... Unlike the expansionism which occurred before in the history of the United States, many people now had a more imperialistic feeling.