The Imperial Impossibility

The Donald Trump administration’s renewed campaign to acquire Greenland represents one of the most brazen challenges to the foundational principles of international law and democratic governance since World War II. Trump’s explicit threats to use military force against a NATO ally, coupled with his dismissal of established sovereignty rights and international legal frameworks, illuminate a broader pattern of authoritarian expansion that undermines the very foundations of the post-war international order. The administration’s claims about imminent Chinese and Russian takeover of Greenland serve as a manufactured justification for what amounts to an attempt at 21st-century colonial acquisition—one that violates international law, threatens alliance structures, and reveals dangerous authoritarian impulses within American governance.

The legal reality is unambiguous: any attempt by the United States to acquire Greenland through force or coercion would constitute a flagrant violation of international law. The prohibition against territorial annexation through the use of force stands as one of the most fundamental principles of modern international law, crystallized through decades of legal development following the catastrophic territorial conflicts of the early 20th century. This prohibition is enshrined in Article 2(4) of the United Nations Charter, which requires all member states to “refrain in their international relations from the threat or use of force against the territorial integrity or political independence of any state.” The principle was further reinforced through the 1970 Declaration on Principles of International Law, which explicitly states that “no territorial acquisition resulting from the threat or use of force shall be recognized as legal.”

The evolution of international law toward this absolute prohibition reflects hard-learned lessons from an era when territorial conquest was commonplace and devastating. As legal scholars Ingrid Brunk and Monica Hakimi document in their analysis for Columbia Law School, the prohibition of annexations sits at the foundation of three central projects in international law: establishing state authority in defined territorial spaces, fostering peace among independent states, and realizing the self-determination of peoples within territorially defined states. The dramatic decline in successful territorial conquests since 1948—with forcible territorial acquisition dropping by 94% compared to the period between 1816 and 1928—demonstrates the effectiveness of these legal prohibitions in maintaining international stability.

Trump’s threats against Greenland therefore represent not merely a policy dispute, but a fundamental assault on the legal architecture that has maintained relative peace between major powers for nearly eight decades. When Trump declares that the United States will “do something on Greenland whether they like it or not” and refuses to rule out military action, he is explicitly threatening to violate what legal experts describe as jus cogens—peremptory norms of international law that permit no derogation. The Rome Statute of the International Criminal Court specifically defines annexation by force as an act of aggression and a serious international crime. Any military action to seize Greenland would not only violate international law but could constitute grounds for prosecution under international criminal law.

The administration’s justifications for these threats rest on demonstrably false claims about Chinese and Russian presence in Greenland. Trump has repeatedly asserted that Greenland is “covered with Russian and Chinese ships all over the place,” creating an alleged security crisis that requires immediate American intervention. However, vessel tracking data from maritime intelligence services shows no evidence of Chinese or Russian ships near Greenland. Andreas Østhagen, research director at the Oslo-based Fridtjof Nansen Institute, states definitively that “there are no Russian and Chinese ships all over the place around Greenland” and that “Russia and/or China has no capacity to occupy Greenland or to take control over Greenland.”

Danish Foreign Minister Lars Løkke Rasmussen similarly refutes these claims, noting that “the image that’s being painted of Russian and Chinese ships right inside the Nuuk fjord and massive Chinese investments being made is not correct.” Nordic diplomats quoted in intelligence assessments confirm that “it is simply not true that the Chinese and Russians are there,” with one noting, “I have seen the intelligence. There are no ships, no submarines.” The only documented Chinese and Russian military activities in Arctic waters have occurred off the coast of Alaska, not near Greenland, highlighting the geographical misrepresentation underlying Trump’s claims.

The reality of Chinese engagement with Greenland reveals a far more modest presence than Trump’s rhetoric suggests. Chinese companies have expressed interest in mining investments and infrastructure projects, but many of these have been blocked or scaled back due to security concerns raised by the United States and Denmark. The most significant example occurred in 2024 when American and Danish officials pressured Tanbreez Mining not to sell Greenland’s largest rare-earth deposit to Chinese developers, resulting in the project being sold to Critical Metals of the United States for reportedly much less than the Chinese offer. This demonstrates that existing diplomatic and economic tools have successfully limited Chinese influence without requiring any violation of international law or threats against allied sovereignty.

The strategic arguments for American control of Greenland also rest on exaggerated claims given existing security arrangements. The United States already maintains substantial military presence in Greenland through Pituffik Space Base, established in 1951 as part of a bilateral defense agreement with Denmark. This agreement, amended in 2004 and supplemented by the Defence Cooperation Agreement finalized in June 2025, provides the United States with comprehensive access to expand military installations and operations in Greenland as needed for legitimate defense purposes. Military experts note that these existing arrangements already provide the United States with all necessary strategic benefits without requiring ownership or sovereignty transfer.

The genuine strategic importance of Greenland lies in its position within the Greenland-Iceland-United Kingdom (GIUK) gap, a crucial chokepoint for monitoring submarine movements between the Arctic and Atlantic oceans. However, this strategic value is already secured through existing NATO arrangements and bilateral agreements. The island’s position for ballistic missile defense and Arctic surveillance is fully accessible to American forces under current agreements, making the administration’s demands for ownership strategically unnecessary and legally unjustifiable.

Greenland’s political status as a self-governing territory of Denmark, with its own democratically elected government and rights under international law to self-determination, makes any forced acquisition particularly egregious. Under Danish law, Greenland has the legal right to declare independence at any time through a referendum, reflecting the principle that territorial sovereignty ultimately rests with the people who inhabit the territory. Polling data from 2025 shows that 85% of Greenlanders oppose becoming part of the United States, while only a small percentage support American acquisition. This overwhelming opposition reflects not just policy preferences but fundamental questions of cultural identity, indigenous rights, and democratic self-governance.

The economic dimensions of Trump’s interest in Greenland reveal the corporate motivations underlying his territorial ambitions. Greenland contains an estimated 17.5 billion barrels of offshore crude oil, 4.19 trillion cubic meters of natural gas, and what may be the largest deposits of rare-earth elements outside China. A 2023 survey by the European Commission found 25 of 34 materials classified as “critical raw materials” present in Greenland. However, estimates suggest that purchasing Greenland could cost the United States as much as $700 billion, more than half the Defense Department’s annual budget. This extraordinary cost, combined with Greenland’s explicit refusal to be sold, demonstrates the fundamental impossibility of any legitimate acquisition.

The corporate interests driving these ambitions become clearer when examining Trump’s broader pattern of mixing personal business interests with foreign policy objectives. His description of potential Greenland acquisition as “essentially a real estate deal” reveals the transactional mindset that views territorial sovereignty as a commodity to be bought and sold rather than a fundamental right of peoples to govern themselves. This approach directly contradicts both international law principles and democratic values that recognize the inherent right of peoples to self-determination.

Trump’s threats against Greenland also represent a dangerous precedent for global territorial conflicts. If the United States can threaten military action to acquire territory from allies based on exaggerated security claims and resource interests, it provides a template that authoritarian powers worldwide could adopt to justify their own territorial expansions. The principle that borders cannot be changed by force serves as one of the primary bulwarks against international conflict. Undermining this principle invites global instability and normalizes the very behavior the international legal system was designed to prevent.

The impact on NATO and transatlantic alliance structures could be catastrophic. European officials have noted that Trump’s threats raise fundamental questions about Article 5 collective defense commitments, with Brussels-based analyst Guntram Wolff observing that “if the U.S. president says he can only defend what he owns, well what he is basically saying is he cannot defend Europe under any circumstances because he doesn’t own Europe.” Danish Prime Minister Mette Frederiksen has warned that Trump’s territorial demands could lead to the demise of the NATO alliance, noting the fundamental contradiction in threatening military action against one NATO member while claiming to defend alliance interests.

The administration’s approach to Greenland also illuminates broader patterns of democratic backsliding and institutional capture within American governance. When democratic institutions are captured by authoritarian leaders, the result is often aggressive foreign policies that prioritize personal or corporate interests over diplomatic norms and legal frameworks. Trump’s willingness to threaten force against democratic allies while pursuing territorial expansion mirrors historical patterns of authoritarian consolidation that begin with domestic institutional capture and expand into international aggression.

The systematic nature of these threats becomes more apparent when considered alongside the administration’s recent military action in Venezuela, where U.S. forces captured President Nicolás Maduro in violation of international law. This action, combined with threats against Greenland, the Panama Canal, and other territories, suggests a coordinated strategy of territorial expansion that abandons the multilateral, rules-based approach that has characterized American foreign policy since World War II. The pattern reveals how domestic authoritarian capture can quickly translate into international aggression that destabilizes global order.

Historical precedents for such territorial expansion campaigns generally end in global conflict. The 1930s witnessed similar patterns of territorial demands justified by manufactured security threats and resource needs, leading ultimately to global war that cost tens of millions of lives. The international legal framework prohibiting territorial annexation exists precisely to prevent such escalation. When major powers abandon these frameworks, they create security dilemmas that can rapidly spiral into widespread conflict as other nations respond to protect their own territorial integrity.

The response from Congress reveals the institutional weakness that enables such authoritarian overreach. While some Republican leaders have expressed discomfort with military threats against NATO allies, the broader pattern shows insufficient institutional resistance to prevent executive branch violations of international law. House Speaker Mike Johnson’s dismissal of military options as not seriously being considered contrasts sharply with the administration’s explicit refusal to rule out force, demonstrating the disconnect between institutional assumptions and authoritarian realities.

Democratic institutions’ failure to constrain executive power in foreign policy creates conditions where international legal violations become normalized. When domestic checks and balances fail, the result is often foreign policies that serve narrow interests rather than national security or democratic values. The Greenland case illustrates how institutional capture can lead to foreign policy positions that actually undermine rather than enhance American security by alienating allies and destabilizing international law.

The economic irrationality of forcing a Greenland acquisition also reveals how corporate capture of policymaking can lead to strategically counterproductive outcomes. The estimated $700 billion cost of acquiring Greenland exceeds the entire GDP of most countries and would represent one of the largest financial commitments in American history. This cost, for territory whose strategic benefits are already accessible through existing agreements, demonstrates how corporate interests in resource extraction can drive policy decisions that make no economic or strategic sense from a national perspective.

Alternative approaches that respect sovereignty and international law could achieve all legitimate American objectives in Greenland while strengthening rather than undermining alliance relationships. Increased investment in existing military facilities under current agreements could enhance surveillance and defense capabilities. Economic partnerships that respect Greenlandic autonomy and environmental concerns could provide access to mineral resources while supporting local development. Diplomatic engagement that listens to Greenlandic priorities could strengthen cooperation while respecting self-determination rights.

The contrast between these constructive alternatives and the administration’s threats of force highlights the degree to which current policy serves narrow interests rather than broader national security needs. When policymaking is captured by corporate interests and authoritarian impulses, the result is often policies that weaken rather than strengthen national position while violating the legal and ethical principles that maintain international stability.

The international community’s response to American threats against Greenland will likely shape global governance structures for decades. If the United States can threaten military action against allies with impunity, it signals the collapse of the multilateral order and invites other powers to pursue their own territorial ambitions through force. The precedent could destabilize regions from the South China Sea to Eastern Europe, as the prohibition against territorial conquest loses credibility through American violation.

European Union and NATO responses to these threats represent a critical test of whether democratic institutions can maintain legal and ethical standards when challenged by authoritarian allies. The ability of European institutions to resist American pressure while maintaining alliance relationships will determine whether democratic governance can survive the current authoritarian challenge or will be subsumed into a new international order based on power rather than law.

The broader implications extend beyond territorial disputes to fundamental questions about the future of democratic governance and international law. When democratic nations abandon legal frameworks in pursuit of territorial expansion, they delegitimize the very principles that distinguish democratic from authoritarian governance. The result is a global regression toward power-based rather than law-based international relations, with predictable consequences for peace and stability.

The Greenland case ultimately represents a choice between two fundamentally different visions of international order. One vision maintains that territorial sovereignty rests with peoples who inhabit territories, that borders cannot be changed by force, and that international law provides the framework for resolving disputes peacefully. The alternative vision treats territory as commodity to be bought, sold, or seized by powerful actors, with legal frameworks subordinated to economic and strategic interests of dominant powers.

The outcome of this choice will determine whether the post-war international system survives the current challenge or gives way to a new era of territorial conflict and authoritarian expansion. For democratic nations, the stakes could not be higher. The principles at stake in Greenland—sovereignty, self-determination, and the prohibition of territorial conquest—form the foundation upon which democratic governance and international stability rest. Their abandonment would mark not just a foreign policy failure, but a fundamental betrayal of the values and institutions that democratic societies claim to defend.

The path forward requires reaffirming commitment to international law, respecting Greenlandic self-determination, and rejecting the false choice between American security and allied sovereignty. Greenland’s strategic importance can be secured through cooperation rather than conquest, its resources accessed through partnership rather than predation, and its security guaranteed through alliance rather than annexation. These alternatives serve American interests while strengthening rather than undermining the international order upon which long-term peace and prosperity depend.

This analysis examines the Trump administration’s threats to acquire Greenland through force or coercion in the context of international law prohibiting territorial annexation, the fabricated nature of security justifications involving Chinese and Russian presence, and the broader implications for democratic governance and international stability.