Question

What did the Monroe Doctrine say about American involvement in future European wars?

The United States would support any country at war with Spain.

The United States would support any country trying to colonize the Americas.

The United States would continue to remain neutral in those wars.

The United States would support Britain against any enemy.

Answer 1

The United States would continue to remain neutral is the answer. The doctrine basically said European colonization of the Americas should stop, and America should stop taking sides in European wars. Both should be distinct, basically.