The Monroe Doctrine trails off into a Wikipedia entry as far as most are concerned. You may have to be smarter than a Fifth Grader to remember its significance among the legal long sentences and starched formality. The Monroe Doctrine is a statement of land title in America.
Land title is one of the most important aspects of our law that we have to protect us. Our land is a place for us to have a home and family. It is an investment often beyond monetary value on both an individual and national basis.
In 1823 President James Monroe introduced this doctrine in his State of the Union address. At that time, Florida had not become a state yet, though it was a US territory, and European countries were still squabbling over New World colonies. The Monroe Doctrine was a statement to those European nations declaring that the United States is a sovereign country, not open to colonization any more. Period.
The Monroe Doctrine
clarified the title the United States has on land in North America to dissuade
foreign claimants.