A New Doctrine for the Americas: From Monroe's Warning to Trump's "Donroe" Assertions

A significant shift in United States foreign policy towards the Western Hemisphere appears to be coalescing under a new moniker: the "Donroe Doctrine." This term, a portmanteau blending the name of former President Donald Trump with the historic Monroe Doctrine, signifies a robust reassertion of American predominance in the region, drawing parallels to 19th-century declarations while adapting them to contemporary geopolitical rivalries. This evolving approach has been characterized by muscular rhetoric and decisive actions, notably targeting external influences like China and Russia, and has ignited a vigorous debate about the future of U.S. engagement in its traditional sphere of influence.

The Enduring Legacy of the Monroe Doctrine

The foundation of American foreign policy in the Western Hemisphere was laid in 1823 with President James Monroe's declaration. The original Monroe Doctrine, delivered amidst the independence movements sweeping through Latin America, served as a stern warning to European powers: any attempts to colonize or interfere with newly independent nations in the Americas would be viewed as acts hostile to the United States. In exchange, the U.S. pledged not to meddle in European affairs. This seminal policy aimed to secure the nascent nations of the Americas from external re-colonization and establish a distinct U.S. sphere of influence, thereby preventing the extension of European political systems into the hemisphere.

Over time, the doctrine evolved. A pivotal expansion came with President Theodore Roosevelt's Corollary in 1904, which asserted the right of the United States to intervene militarily in Latin American countries to stabilize their economies, ensure order, and protect U.S. interests, particularly if those nations were unable or unwilling to manage their own affairs or repay debts to European creditors. This interpretation justified numerous U.S. interventions throughout the early 20th century, cementing the doctrine's role as a cornerstone of U.S. foreign policy in the region and often leading to resentment and accusations of imperialism from Latin American nations.

The Genesis of the "Donroe Doctrine"

Fast forward two centuries, and the concept of hemispheric dominance is being re-envisioned. The term "Donroe Doctrine" gained prominence on January 8, 2025, when the New York Post published a front-page headline, widely credited as the origin of the phrase, detailing former President Donald Trump's vision for the hemisphere. This new "doctrine" represents a direct adaptation and "Trump Corollary" to the original Monroe Doctrine, tailored for the challenges and rivalries of the 21st century.

At its core, the Donroe Doctrine, as articulated by Trump and his administration, describes a desire to reassert and enforce American predominance in the Western Hemisphere, primarily by excluding what are perceived as adversarial influences, particularly from China and Russia. While the original doctrine sought to block European colonial ambitions, its modern iteration aims to counter the growing economic, political, and military footprints of contemporary global rivals in Latin America and beyond. This approach signals a departure from post-Cold War foreign policy trends that often emphasized multilateralism and partnerships, towards a more unilateral and assertive stance.

Asserting Dominance: Actions and Rhetoric Under the New Doctrine

The tenets of the Donroe Doctrine have been translated into both explicit policy pronouncements and tangible actions. The administration's national security strategy, released in November 2025, explicitly referenced the Monroe Doctrine and asserted a "Trump Corollary," stating the intention to "reassert and enforce the Monroe doctrine to restore American pre-eminence in the Western Hemisphere". This strategic document underscored a clear commitment to leveraging American power to shape regional dynamics.

Beyond rhetoric, the doctrine has been illustrated by several high-profile events. Executive Order 14172, directing U.S. federal agencies to refer to the Gulf of Mexico as the "Gulf of America," served as an early symbolic gesture of this renewed claim to regional influence. More significantly, the use of naval forces in the Caribbean targeting alleged drug boats has been labeled by observers as an example of both the Donroe Doctrine in practice and a revival of "gunboat diplomacy," focusing on direct intervention rather than large-scale military actions.

A critical flashpoint for the Donroe Doctrine was the "abduction" of Venezuela's leader, Nicolas Maduro, in January 2026, an action explicitly justified by the U.S. invoking the 19th-century Monroe Doctrine. This event highlighted a willingness to take aggressive steps to achieve policy objectives in the region. Furthermore, statements from President Trump indicated a broader scope for this assertive policy. Remarks about Colombia, describing it as "very sick" and run by a "sick man who likes making cocaine," alongside an inquiry about launching a military operation, signaled a potential readiness for intervention beyond Venezuela. The doctrine's reach also extended to the broader geographical considerations, with Trump expressing interest in "taking control of Greenland" for defense purposes and stating, "It's not hemisphere. It's the country. It's individual countries," suggesting that the principles of American dominance could transcend traditional regional boundaries.

Implications and Scrutiny: A Redefined Global Order?

The emergence of the Donroe Doctrine carries significant implications for international relations, drawing both support from proponents of a more assertive U.S. role and criticism from those concerned about its potential consequences. Critics have described the doctrine as reflecting a "very parochial New York view" of foreign relations, akin to "mob bosses battling for control of turf". Concerns have been raised about its characterization as "blatant profiteering" and a "mercantilist strategy of US dominance absent strong alliances and support for international systems". Some analysts view it as a return to "nineteenth century territorial imperialism," particularly with an emphasis on securing raw materials like petroleum and rare earths.

The doctrine's focus on excluding rival powers, particularly China and Russia, has fueled discussions about a potential return to a "sphere of influence world," where major global powers delineate and control their respective regional domains. This approach could undermine the international rules-based order that emerged after World War II, which emphasized multilateralism and the sovereignty of nations, regardless of their proximity to a superpower. The rationale offered by the administration—that the United States, as a superpower, should not allow countries in its "backyard" to supply resources to adversaries—reflects a zero-sum view of international competition. The question of whether such a strategy, heavily reliant on perceived strength and force, can be successful without robust alliances and international cooperation remains a central point of contention among foreign policy experts.

Looking Ahead: A Redefined Hemispheric Order?

The evolution from the 1823 Monroe Doctrine to the contemporary "Donroe Doctrine" marks a significant conceptual shift in U.S. foreign policy towards the Western Hemisphere. While both doctrines champion American predominance in the region and seek to exclude external adversaries, the modern iteration is characterized by a more aggressive and potentially expansive application of power, specifically targeting China and Russia's growing influence. The "Donroe Doctrine" signals a readiness for unilateral action and a re-prioritization of perceived national interests through direct assertion, challenging traditional diplomatic norms and potentially reshaping regional stability. As this doctrine continues to unfold, its long-term effects on the sovereignty of Latin American nations, global power dynamics, and the future of international relations will be closely watched and debated.