Answer :
The chance of increased European involvement in the Americas President Monroe. There was also concerns about Russia's intentions for controlling land in the northwest.
The Monroe Doctrine was elaborated by John Quincy Adams and attributed to James Monroe in 1823. This doctrine was directed mainly to the European powers with the intention of communicating that the United States wouldn't tolerate any interference from the European powers in America.
The first part of this declaration was referred to Russia's claims on the Pacific coast, and the second part was concerned specifically the intentions that the European powers might have on Latin America.
Monroe firmly asked the European powers not to intervene in America. He also promised not to intervene in European affairs.