Question

Under what circumstances did the United States emerge as a world power, and how did the nation respond to this new role? SHORT ANSWER

Answer 1

The control of several countries. The response was to try to keep this control and work in expansion.

Step-by-step explanation:

At the end of Century 19th the historians have considered the age of the American imperialism due to the United states did annex Hawaii and took the control over cuba, guam, Puerto Rico and Philippines.

These circumstances let the United States to grow and be prospered. The most productive economy was evidenced at the 1890 approximately.