The specter of the Monroe Doctrine, a cornerstone of U.S. Foreign policy for nearly two centuries, is once again dominating discussions about the Americas. Recent actions by the administration of Donald Trump, including a controversial renaming of the Gulf of Mexico to the “Gulf of America” and increased military activity in the region, have sparked concerns about a resurgence of interventionist policies reminiscent of the 19th and 20th centuries. While the original doctrine aimed to prevent European colonization, critics argue that the current iteration, dubbed a “Trump Corollary” by the White House, risks exacerbating tensions and undermining sovereignty in Latin America.
The Monroe Doctrine, first articulated by President James Monroe in his 1823 State of the Union address, fundamentally asserted that the Americas were no longer open to further colonization by European powers. It was a response to the Holy Alliance’s attempts to restore Spanish control over newly independent Latin American nations following the Napoleonic Wars. As the doctrine evolved, it became a justification for U.S. Intervention throughout the hemisphere, often framed as protecting American interests and promoting stability. The historical legacy of this interventionism is complex and often fraught with controversy, marked by instances of both support for democratic movements and support for authoritarian regimes.
A New Corollary and Assertions of Control
On December 2, 2025, marking the bicentennial of the original doctrine, President Trump unveiled what he termed a “Trump Corollary” to the Monroe Doctrine. According to a White House proclamation, this corollary asserts that the American people—not foreign nations or globalist institutions—will always control their own destiny in the Western Hemisphere. This declaration comes amidst a series of assertive actions, including the reestablishment of U.S. Privileged access through the Panama Canal and a significant build-up of naval forces in the Caribbean Sea and the Gulf of America. The administration has framed these actions as necessary to combat drug trafficking and terrorism, but critics contend they represent a broader effort to exert U.S. Dominance over the region.
A key component of this renewed focus has been the designation of eight Latin American cartels as “Foreign Terrorist Organizations” in February 2025. This designation, while intended to disrupt criminal networks, has been used to justify unilateral military operations within Venezuela and Mexico. Since September 2, 2025, the U.S. Military has conducted 38 strikes, resulting in at least 124 fatalities, purportedly targeting narcotics trafficking. The most dramatic event was the capture of Venezuelan President Nicolás Maduro on January 3, 2026, an action widely condemned internationally as a violation of Venezuelan sovereignty. The renaming of the Gulf of Mexico to the “Gulf of America” – initially dismissed by many as a symbolic gesture – now appears to have been a precursor to these more aggressive actions.
International Law and Concerns Over Sovereignty
The recent U.S. Actions have raised serious questions about compliance with international law. While the designation of cartels as terrorist organizations provides some legal justification for targeted operations, the broader military interventions and the capture of a foreign head of state are viewed by many as violations of national sovereignty. Critics point to the historical precedent of “Gunboat Diplomacy” – the use of naval power to intimidate or coerce other nations – as a troubling parallel. The unilateral nature of these actions, without the backing of international consensus or a clear mandate from the United Nations, has further fueled concerns about a return to a more interventionist era.
The legality of the strikes conducted in Mexico, in particular, is contested. While the U.S. Government argues it is acting to protect its national security interests by disrupting the flow of narcotics, Mexico’s government has protested the incursions into its territory. The designation of cartels as terrorist organizations allows for a broader interpretation of self-defense, but the extent to which this justifies military operations on foreign soil remains a subject of debate. The lack of transparency surrounding these operations and the reported civilian casualties have also drawn criticism from human rights organizations.
Latin American Reactions and Regional Implications
The “Trump Corollary” and the accompanying actions have elicited a range of reactions from Latin American governments. While some countries have expressed tacit support for efforts to combat drug trafficking, many others have condemned the U.S. Actions as an infringement on their sovereignty. The capture of Nicolás Maduro has been particularly divisive, with some nations calling for his immediate release and others expressing concern about the potential for further instability in Venezuela. The renaming of the Gulf of Mexico was widely ridiculed and seen as a symbolic act of disrespect.
The increased U.S. Military presence in the region is also raising concerns about a potential arms race. Several Latin American countries are reportedly increasing their defense spending in response to the perceived threat. The potential for escalation is further heightened by the complex geopolitical dynamics in the region, including the presence of other external actors such as Russia and China, who are seeking to expand their influence in Latin America. The situation is creating a climate of mistrust and uncertainty, potentially undermining regional cooperation and stability.
Historical Parallels and the Evolving Doctrine
The current situation echoes earlier periods in the history of the Monroe Doctrine. In the late 19th and early 20th centuries, the doctrine was invoked to justify U.S. Intervention in countries such as Cuba, Panama, and Nicaragua. The Roosevelt Corollary, added in 1904, asserted the right of the U.S. To intervene in the domestic affairs of Latin American nations if they were unable to maintain order or pay their debts. This led to decades of U.S. Dominance in the region, often at the expense of local sovereignty and self-determination.
During the Cold War, the Monroe Doctrine was used to justify U.S. Opposition to communist regimes in Latin America. The U.S. Supported military dictatorships and intervened in countries such as Chile and Guatemala to prevent the spread of communism. This period was marked by widespread human rights abuses and political repression. The end of the Cold War led to a reassessment of U.S. Policy towards Latin America, but the underlying impulse to maintain U.S. Influence in the region remained.
The Future of U.S.-Latin American Relations
The long-term implications of the “Trump Corollary” and the current U.S. Policies remain to be seen. However, the relationship between the U.S. And Latin America is at a critical juncture. The unilateral actions taken by the Trump administration have eroded trust and created a climate of resentment. A more constructive approach would require a greater emphasis on diplomacy, respect for sovereignty, and a commitment to addressing the root causes of instability in the region, such as poverty, inequality, and corruption.
The current approach risks alienating key partners and creating opportunities for other external actors to expand their influence in Latin America. A more collaborative approach, based on mutual respect and shared interests, would be more likely to achieve lasting stability and prosperity in the region. The future of the Monroe Doctrine, and indeed the future of U.S.-Latin American relations, will depend on whether the U.S. Chooses to embrace a more cooperative and respectful approach.
The next key development to watch will be the outcome of the ongoing legal challenges to the designation of Latin American cartels as terrorist organizations, with rulings expected in several U.S. Courts in the coming months. This will likely set a precedent for future U.S. Interventions in the region. We encourage readers to share their thoughts on this evolving situation in the comments below.