Why did americans attitudes toward overseas expansion change?

They felt that the nation needed to find new sources of overseas markets to maintain the strength of their economy. Due to a cycle of over-production and under-consumption led to a large surplus that affected their economy so they eyed potential markets overseas where they can sell their products and find more business opportunities.

yes                                            

explanation:

just cause                            

the historians cited in the article all agree with one another about the cause of the civil war. despite coming from different backgrounds and cultures, the historians agree that slavery was the root cause of the civil war. the fact that all these historiansgenerally agree with one another makes their shared viewpoints more reliable and valid, especially because the historians have different backgrounds and all work for the well-respected institutions of howard university, clemson university, and the university of colorado.