Final answer:
The acquisition of foreign territories and the expansion of influence remains a topic of debate, with proponents arguing it was justified to protect American interests and promote democracy, while opponents raise ethical concerns and highlight negative consequences.
Step-by-step explanation:
The acquisition of foreign territories and the expansion of influence by the United States during this period, often referred to as imperialism, remains a topic of debate. Proponents argue that the expansion was justified as a means to protect American interests, promote democracy, and further economic growth.
They view American expansion as a continuation of the belief in manifest destiny, which portrayed expansion as inevitable and just. Opponents argue that the annexation of foreign territories involved unethical actions and violated the principles of self-determination.
The expansion also heightened tensions between free and slaveholding states, and brought about negative consequences for native populations. Ultimately, whether the US was justified in annexing foreign territories and expanding its influence is a complex question with no definitive answer.