I don't really know it but I think the answer is following
The correct answer is A) the doctrine helped the US form a military base that kept European Nations at bay.
<em>The Monroe Doctrine was important to the US during James Monroe's presidency because the doctrine helped the US form a military base that kept European Nations at bay.</em>
During an annual Presidential speech, President James Monroe referred to this doctrine, a new form of foreign policy that stated that European nations should never intervene again in American issues. The message was clear, European nations were not to interfere in any country of the American continent. It also stated that the United States would remain neutral in any European conflict. The Monroe Doctrine was used on December 2, 1823, and it was a clear US statement against European colonization.
Answer:
For nearly a century, the people and politicians of the Northern and Southern states had been clashing over the issues that finally led to war: economic interests, cultural values, the power of the federal government to control the states, and, most importantly, slavery in American society.
Explanation:
