The Monroe Doctrine was first presented to Congress by President James Monroe during his seventh annual State of the Union Address in 1823. During that time, many of the Spanish colonies were on their path to independence and America was concerned that European powers would be tempted to take over them. So, the Monroe Doctrine was put in place. It was actually written by John Adams and warns European nations that any attempt to interfere with American states would be seen as a threat to the U.S and that the U.S would, in turn, leave the Western Hemisphere undisturbed from that day forward.
