1823, 1823 On February 2, 2003, US President james monroe submitted a State of the Union address drafted by john quincy adams to Congress. The main content of this speech on foreign affairs is called "Monroe Declaration" and later called "Monroe Doctrine". Its content can be roughly summarized into three basic principles: the principle of "opposing European countries to recapture American colonies", the principle of "non-interference" and the principle of "American system". The Monroe Declaration became a tool used by the United States to oppose foreign interference in American affairs, prevent and further exclude the political influence of European powers in the Western Hemisphere, and "separate" the United States and Europe, thus clearing the way for the expansion of the United States in the Western Hemisphere.

2 Holy Alliance

/kloc-At the beginning of the 9th century, the Latin American independence movement flourished. With the support of the "Holy Alliance" in Europe, Spain tried to restore its colonies in Latin America, and Britain and the countries of the Holy Alliance also actively intervened in Latin America. Monroe made this speech on the pretext of preventing European countries from interfering in Latin American affairs. The State of the Union address declared: "It is impossible for a country of the United States to extend its political system to any part of the United States without endangering our peace and happiness; No one will believe that the people of our southern brotherly countries can establish the political system they want without assistance, so it is equally impossible for us to sit back and watch European powers interfere with them in any way without asking any questions. " And put forward the slogan "America is the America of Americans". Monroe's foreign policy is mainly to stop the invasion of Latin America by European powers and consolidate the independence of Latin American countries. But we should also see that this declaration is also an excuse for the United States to invade Latin America. It has built a shield for the United States to control and plunder Latin America under the guise of "aid" in the future and has become a tool for the United States to establish a "backyard" in Latin America.

3 Monroe Doctrine

When Latin American countries are moving towards independence, the United States has taken Latin America as its sphere of influence. From 1822 to 1823, when the "Holy Alliance" in Europe tried to interfere with the independence movement in Latin America, the United States actively pursued the policy of "American affairs are American affairs". 1823, US President Monroe delivered a State of the Union address to the National Assembly, declaring: "In the future, no European power can regard the countries that have become independent and free on the American continent as the objects of future colonization." He also said that the United States does not interfere in the internal affairs of European powers, nor does it allow European powers to interfere in American affairs. This State of the Union address is often called the Monroe Declaration. The principle it contains is what is commonly called "Monroe Doctrine". Monroe Doctrine mainly has three meanings: (1) It requires European countries not to colonize the western hemisphere. This principle not only expresses opposition to the expansion of western European countries in Latin America, but also opposes Russia's expansion on the west coast of North America. (2) Require Europe not to interfere in the affairs of independent countries in America; (3) Ensure that the United States does not interfere in European affairs, including the affairs of the existing European colonies in America. Monroe Doctrine did not have much influence at that time, because Britain's influence in Latin America greatly exceeded that of the United States. 19 After the 1940s, the United States revisited Monroe Doctrine.