Monroe made four basic points: (1) the United States would not interfere in the internal affairs of or the wars between European powers; (2) the United States recognized and would not interfere with existing colonies and dependencies in the Western Hemisphere; (3) the Western Hemisphere was closed to future colonization; and (4) any attempt by a European power to oppress or control any nation in the Western Hemisphere would be viewed as a hostile act against the United States.
Citizens that have been naturalized or are born in the US/former slaves at the time.
It granted equal protection of the law
New imperialism happened during the 19th century where there is rampant expansion of territories. The known Super power countries have divided the world and accelerated all economic factors that would contribute to the emancipation of wealth and power. Colonized countries had become followers on their own lands while colonizers heavily took their resources and used their territories as extensions for trade. In the end, in a way, the countries have been successful up to now although they do not directly hold the countries they already gained solid ground for opportunities and changes enjoyed by the citizens.