The Monroe Doctrine is a crucial milestone for all international relations experts. It's the manifesto that established the phrase "America for Americans" on the world stage. Recently, this doctrine has resurfaced with Trump's opening to Venezuela, and it's even being jokingly referred to as the "Donroe Doctrine." Since we have the opportunity, let's briefly evaluate what the Monroe Doctrine is and isn't. As you know, the colonization of South America began in 1521 with the massacre of Central and South American societies like the Aztecs, Incas, and Maya by conquistadors like Hernan Cortes and Francisco Pizarro, and the subsequent colonization of the region by the European powers they were subordinate to; this continued until the early 1800s, when Simon Bolivar liberated the region from European powers. It was precisely during this period, in 1823, that US President Monroe made a statement to the US Congress, declaring America's new approach: "Any European intervention in the Americas will be considered an act of hostility against the United States."
This is the well-known summary of the matter; however, there are some lesser-known aspects. Firstly, this doctrine, which has gone down in history under the name of President Monroe, is actually entirely the product of the then Secretary of State, John Quincy Adams, son of the second US President John Adams; in fact, we can say it belongs to him from A to Z. Secondly, while the US was telling Europeans "don't you dare enter here," he promised not to interfere in European politics. Thirdly, the US issued this doctrine more for Russia than for Latin America. Because at that time, Russia, which owned Alaska (now US territory), also had ports in California (part of California was a Russian colony), and Russia was actually aspiring to expand on the continent. Fourthly, when the US made this threat, it did not have a navy capable of opposing European powers in the event of a contrary situation, and, reluctantly, it began the process with the support of Great Britain, with whom it had just fought a war 10 years earlier.
Years later, with its military, navy, and economy strengthened, the US, during Theodore Roosevelt's presidency, transformed this doctrine into a policy of invading South American countries under the name "Roosevelt Corollary," adding the term "policeman of the region" to its foreign policy literature. While the invasions were scaled back during another Roosevelt era (Franklin Delano), the Nixon era, with Kissinger's perspective, initiated "Operation Condor," based on the Monroe Doctrine, and as a result, Latin America became a region plagued by coups and instability for many years.
The Monroe Doctrine was not limited to a single period; it has undergone continuous changes with successive US presidents, deviating from its original concept until today. Trump's interpretation of this doctrine, in my opinion, will go down in history as a void. Because there is no political framework or strategy for the entire region upon which Theodore Roosevelt, Franklin D. Roosevelt, Kennedy, or Nixon based their political calculations. It's a country-specific approach, prioritizing personal stances, and one that will end when Trump leaves office. In other words, the Monroe Doctrine has been modified in different ways throughout history, but this time is different. The Monroe Doctrine does not enter a new phase with Trump. However, the policies that Trump has implemented, or will implement, towards several South American countries, primarily Venezuela, will continue during his term in office and then end.