History Discussion and Responses (2)

Please respond to this thread by writing a thorough and thoughtful 250-word essay that answers one of the following questions:
Explain the relationship between American westward expansion after the Civil War and the rise of the US as an imperial power in the 1890s and 1900s. What was more important in allowing the US to expand its territories beyond its borders: its military power, or its economic power?
When did the US announce its geopolitical presence with authority as a full-fledged world power? After winning the Spanish-American War in 1898, or after helping the United Kingdom and France win World War I in 1917 and 1918? (Please explain your answer with evidence for this one)
Your Initial Post is expected to be a 250-word prose essay, with a thesis statement and 2-5 paragraphs supporting and explaining the thesis. Remember to base your response on information and analysis from the readings. Cite the information and analysis you provide. Explain what you learned in your own words, and do your best to synthesize the authors’ analyses into your own original analysis; do not rely exclusively on quotations from the readings to make your points. Please change the title of your post to something unique. Note which question you choose to answer.
Your Initial Post should be up by the end of the on Sundays.
So that our discussion is thoughtful and sustained, each peer response must be at least 100 words in length. Your Peer Responses should be posted by the end of the week on Tuesdays.