What did President James Monroe do to promote nationalism when he took office in 1817?

James Monroe proposed the "doctrine" in which he addressed the Europeans with the intention that none of the countries of that continent would interfere in America. "America for the Americans", meant that Europe could not invade or have colonies on the continent.

Explanation:

In 1820, though the U.S. economy was suffering, Monroe ran unopposed and was elected to a second term as president. During this term, he wanted to exert the growing power of the U.S. in the world arena and make a statement of support for free governments in the Americas.

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