How did supporters of US imperialism justify the nation's actions in the South Pacific during the the twentieth century?

Question

A.
They argued that it was the United States' responsibility to provide international security in the Eastern Hemisphere.

B.
They argued that it was the United States' duty to spread its political and cultural beliefs and institutions to other nations.

C.
They argued that containing the spread of communist ideology outweighed the costs of US military intervention in the region.

D.
They argued that the United States must compete with European nations for resources in order to protect its economic interests.

Answer 1

Supporters of US imperialism in the South Pacific during the twentieth century primarily justified the nation's actions with the following argument:

B. They argued that it was the United States' duty to spread its political and cultural beliefs and institutions to other nations.

This perspective aligns with the concept of "Manifest Destiny" and the belief in American exceptionalism, suggesting that the U.S. had a responsibility to promote democracy and its way of life globally. While other options reflect some motivations and contexts relevant to U.S. actions, the notion of a duty to spread beliefs and institutions was a significant justification for imperialist policies during that era.