Greenland, American Power, NATO Sovereignty, and the Question Americans Should Be Asking
By: Ken Robinson
What happens when a great power’s legitimate security concerns collide with the equally legitimate sovereignty of an ally?
That is the question Americans should be asking about Greenland.
Public debate has largely collapsed into caricature. President Donald Trump either sees a strategic danger that Europeans refuse to acknowledge, or he is attempting an extraordinary territorial acquisition through intimidation. Denmark is either defending the basic principle that an ally’s sovereign territory cannot be coerced away, or it has failed to adapt to an Arctic security environment that has changed dramatically since the Cold War.
Neither explanation is sufficient on its own.
Two red lines are converging in the Arctic. The American line is strategic: Greenland cannot become a vulnerability through which Russia or China gains military, technological, commercial, or resource leverage over the approaches to North America. The Danish and Greenlandic line is sovereign: Greenland’s future cannot be decided in Washington, regardless of American power or American security concerns.
Both positions rest on legitimate interests. The danger begins when either side decides that its own interest cancels out the other’s.
Greenland Was Never Strategically Irrelevant
Americans could be forgiven for thinking Greenland appeared on the strategic map only when Donald Trump began discussing its purchase. It did not. The United States understood Greenland’s importance before most living Americans were born.
During World War II, Washington assumed an increasingly important role in Greenland’s defense after Denmark was occupied by Nazi Germany. After the war, the confrontation with the Soviet Union transformed Greenland from a remote Arctic territory into some of the most valuable strategic geography on Earth.
Look at a globe from above the North Pole rather than at a conventional Mercator map, and Greenland’s importance becomes clear. The shortest routes between much of the Soviet Union and North America passed across the Arctic. Soviet bombers, and later intercontinental ballistic missiles, would approach North America through the northern hemisphere. Greenland therefore became part of the warning architecture protecting the United States and Canada.
In 1951, the United States and Denmark signed the Defense of Greenland Agreement within the framework of NATO. The agreement permitted a substantial American military presence while recognizing Danish sovereignty. Its centerpiece became Thule Air Base, now Pituffik Space Base.
At the height of the Cold War, the American presence was enormous. Thule supported early warning, air defense, and Strategic Air Command operations. Other American installations operated across Greenland. Camp Century was constructed beneath the ice sheet as part of an extraordinary experiment in Arctic military operations.
BROKEN ARROW - CODE NAME FOR LOOSE NUKES
That history also includes serious controversies, including the displacement of Inuit communities and the 1968 crash of a nuclear-armed B-52 near Thule. Those events cannot be separated from the broader record.
Even so, the larger strategic point is difficult to dispute: the arrangement worked.
The United States obtained the military access necessary to defend North America. Denmark retained sovereignty. Greenland remained within the Western security architecture. NATO’s northern approaches were protected without requiring American ownership of Greenland.
That history matters enormously to the present argument. The United States does not have to discover Greenland. It is already there.
Pituffik remains America’s northernmost military installation and performs missile-warning, missile-defense, and space-surveillance missions critical to both American and NATO security. The defense relationship has been modernized repeatedly, including through agreements that give Greenland a greater role in decisions affecting the American presence.
That creates the first difficult question in the present controversy: what strategic capability would American sovereignty over Greenland provide that expanded American military access under existing or renegotiated agreements could not?
That question deserves an answer. So does another: has the strategic environment changed enough that the Cold War arrangement is no longer sufficient?
The Arctic Has Changed
Trump’s underlying strategic argument cannot simply be dismissed because of the way he has expressed it.
Russia is an Arctic power. Approximately half of the Arctic coastline belongs to Russia, and Moscow has spent years rebuilding northern military infrastructure, operating submarines beneath the Arctic, expanding airfields and radar networks, developing icebreakers, and treating the Northern Sea Route as both an economic corridor and a strategic asset.
China presents a different problem. Beijing calls itself a “near-Arctic state,” despite its geography, and has pursued scientific, commercial, infrastructure, and mineral opportunities throughout the region. Chinese companies have previously sought involvement in Greenlandic airports, mining, and infrastructure. Danish authorities intervened in several cases when security concerns became significant.
Greenland also contains potentially important deposits of rare earth elements and other critical minerals required for advanced electronics, renewable-energy technologies, and modern weapons systems.
Then there is geography. Melting Arctic ice is gradually changing access to northern shipping routes. The Arctic is becoming more navigable, economically interesting, and militarily competitive.
Trump did not invent any of this.
Indeed, NATO Secretary General Mark Rutte acknowledged in July 2026 that Trump was right about the growing danger of Russian and Chinese access to the Arctic. NATO has subsequently moved toward a broader Arctic security architecture involving the United States, Canada, and the European Arctic allies.
The serious argument, therefore, is not over whether Greenland matters. It unquestionably does. The argument is over what follows from that fact.
Denmark, Russia, and the Problem of Arctic Cooperation
Another piece of history requires careful treatment.
For decades, Arctic policy operated according to assumptions very different from those governing today’s confrontation with Russia. Denmark, Greenland, Canada, Norway, the United States, and other Arctic states participated in institutions designed to keep scientific, environmental, and commercial cooperation functioning even when broader geopolitical relations were strained.
Russia participated as well.
In 2017, for example, Denmark, the United States, Canada, Finland, Iceland, Norway, Sweden, and Russia signed the Agreement on Enhancing International Arctic Scientific Cooperation. The American signatory was Secretary of State Rex Tillerson, serving in the first Trump administration.
That fact matters because cooperation with Russian scientists or institutions cannot automatically be characterized as Danish strategic accommodation of Moscow. Washington participated in the same system.
The Arctic Council itself was built partly around the proposition that environmental research, indigenous affairs, search and rescue, fisheries, scientific observation, and other common concerns required cooperation across political boundaries.
Russian Foreign Minister & Secretary of State - In Better Times
Ukraine changed the equation.
After Russia’s full-scale invasion in 2022, the seven other Arctic states suspended much of their cooperation with Moscow. Finland and Sweden subsequently entered NATO. The Arctic increasingly became another theater of strategic competition between Russia and the West.
Seen through Washington’s security lens, activities once categorized as benign scientific or commercial engagement now receive greater scrutiny. That concern is understandable.
But evidence matters. There is presently a stronger public record supporting American concern about Russia’s overall Arctic military position and China’s attempts to establish economic footholds in Greenland than there is demonstrating that Denmark itself crossed an established American red line through improper Russian penetration of Greenland.
The distinction matters. Strategic suspicion is not the same as intelligence, and intelligence is not the same as proof.
Trump’s Red Line
Trump’s position nevertheless appears consistent at its core. He does not want Greenland merely to remain friendly to the United States. He wants durable American control over the strategic outcome.
That distinction explains much of the controversy.
From Trump’s perspective, governments change, commercial agreements shift, and Greenland could eventually become independent from Denmark. A future Greenlandic government might adopt policies less favorable to Washington. Chinese capital could return. Russia could exploit economic or political openings. Agreements granting American access today might be renegotiated tomorrow.
Ownership, or some permanent arrangement approaching it, would eliminate much of that uncertainty. There is strategic logic in that argument.
There is also a profound problem: Greenland is populated by people with their own political rights.
Greenland is a self-governing territory within the Kingdom of Denmark, and Greenlanders themselves increasingly control their domestic affairs. Whether they ultimately remain within the Danish kingdom, become independent, or choose another constitutional arrangement is fundamentally a question of self-determination.
Security requirements do not erase that principle. That is Copenhagen’s red line. More importantly, it is increasingly Greenland’s.
When Economic Power Becomes Coercion
The dispute became considerably more serious when Trump connected Greenland to tariffs.
In January 2026, he threatened tariffs against Denmark and seven other European countries—Norway, Sweden, France, Germany, Britain, the Netherlands, and Finland—after European governments rallied behind Denmark and participated in Arctic military activities.
The proposed tariffs were to begin at 10 percent and eventually rise to 25 percent unless an agreement concerning Greenland was reached. Trump later withdrew the threat after discussions with NATO Secretary General Rutte and announced that a framework for negotiations had been reached.
But something important had happened. Tariffs were no longer being discussed principally as instruments for correcting trade imbalances, protecting American industry, or confronting unfair commercial practices. They had become geopolitical leverage against allied governments over territory.
That is economic coercion in the traditional meaning of the term.
Whether it is wise coercion is another question.
Trump’s defenders can make a recognizable great-power argument. Economic pressure is preferable to military force. Great powers have always used access to markets, financing, technology, and resources to influence other governments. If American economic leverage can secure strategically important concessions without firing a shot, tariffs become another instrument of national power.
That argument should not simply be dismissed. But neither should its consequences.
An alliance depends upon more than military capability. It depends upon predictability. If NATO members conclude that economic dependence upon the United States can be converted into political pressure whenever Washington wants concessions unrelated to trade, they acquire a powerful incentive to reduce that dependence.
Europe then seeks alternative markets. Canada diversifies its trade. Governments construct financial mechanisms less vulnerable to Washington. Defense industries become more autonomous. Allies begin hedging against American power rather than integrating themselves with it.
A coercive instrument can therefore succeed tactically while losing strategically. That is the calculation Americans should examine.
The Canadian Line
Canada’s response illustrates how far the dispute traveled.
Prime Minister Mark Carney publicly declared that Canada stands firmly with Greenland and Denmark, supports their right to determine Greenland’s future, opposes tariffs connected to the dispute, and remains unwavering in its commitment to NATO Article 5.
Those words should be reported precisely. Carney did not, in the official statement, announce that Canadian forces would go to war against the United States.
But invoking Article 5 in the context of Greenland was hardly accidental.
Article 5 establishes that an armed attack against one NATO member is considered an attack against them all, requiring each ally to assist in accordance with the treaty. The treaty was designed to deter the Soviet Union.
The extraordinary feature of the Greenland controversy is that allied governments found themselves discussing its principles while responding to pressure originating in Washington.
That should concern Americans regardless of their political affiliation. Not because war between the United States and Canada or Denmark is likely—it is not—but because an alliance created principally to deter Moscow had reached a point where members were publicly reaffirming sovereignty and collective defense while answering statements from the president of the United States.
That is strategically abnormal.
The Putin Problem
There is an irony here that deserves particular attention.
Trump’s concern about Russian power in the Arctic is not imaginary. Vladimir Putin has spent decades rebuilding Russian military power in the north. Russia possesses the world’s largest icebreaker fleet, enormous Arctic infrastructure, significant energy interests, and military installations stretching across its northern frontier.
Washington should be paying attention.
But strategy requires distinguishing between recognizing a threat and inadvertently creating opportunities for the adversary.
From Moscow’s perspective, one of the greatest strategic gifts imaginable would be a serious rupture between the United States and its European allies. Russia does not have to defeat NATO militarily if NATO can be politically divided.
A confrontation in which Washington threatens Denmark, European states rally behind Copenhagen, Canada invokes NATO principles, and European governments discuss economic retaliation therefore produces an uncomfortable paradox. Actions justified partly by the Russian threat can, if mishandled, weaken the alliance constructed to contain that threat.
That does not prove Trump’s Greenland strategy is irrational. It establishes the standard by which it should be judged.
Could America Obtain What It Needs Without Owning Greenland?
This may be the most important question in the entire controversy.
Washington requires additional radar installations, it should negotiate them. If NORTHCOM needs expanded access, that should be negotiated as well. If the United States needs additional airfields, ports, satellite facilities, missile-warning systems, or Golden Dome infrastructure, it should pursue them by agreement.
If NATO requires additional forces, the allies can deploy them through established arrangements. If Chinese investment presents unacceptable counterintelligence or infrastructure risks, the United States, Denmark, and Greenland can construct a common investment-screening mechanism.
Russian Nuclear Powered Ice Breaker - Goes Wherever It Wants
If Greenland needs capital to develop critical minerals without becoming dependent upon Beijing, American, Canadian, and European capital can be mobilized. If Russian military activity threatens the Greenland-Iceland-United Kingdom gap or the approaches to North America, NATO can strengthen its Arctic posture.
Indeed, NATO is already moving in precisely that direction through its expanding Arctic security initiatives.
None of those measures inherently requires changing Greenland’s flag.
That is why the burden of strategic explanation ultimately rests with Washington. If sovereignty itself is necessary for American security, the administration should explain why. If access is what matters, then an alliance structure that has provided American access for three quarters of a century remains available.
Denmark Has Responsibilities Too
Balance requires acknowledging that Copenhagen cannot simply invoke sovereignty and consider the matter closed.
Sovereignty carries responsibilities. If Denmark and Greenland expect the United States to respect the existing political order, they must demonstrate that the existing order can protect the strategic territory involved.
Denmark allowed its Arctic military capacity to decline considerably after the Cold War. The changed security environment now requires greater surveillance, infrastructure, maritime capability, and sustained military presence.
Copenhagen has recognized this and committed billions of dollars to strengthening Arctic defense. That investment is overdue.
European governments also cannot simultaneously insist that Greenland is indispensable sovereign NATO territory and expect the United States to carry a disproportionate share of its defense indefinitely.
If Greenland is NATO’s strategic northern flank, NATO must defend it as such. That means Denmark, Canada, the European allies, and inevitably the United States.
The Greenlanders
One participant routinely disappears whenever great powers discuss Greenland: the Greenlanders themselves.
Roughly 57,000 people live there. They are not strategic terrain. They are citizens and communities with their own history, language, politics, and increasingly powerful national identity.
Many Greenlanders favor eventual independence from Denmark. That does not mean they favor becoming Americans. Those are entirely different propositions.
Greenland’s leaders have repeatedly said that the territory is open for business but not for sale. That distinction deserves more attention than it receives.
The United States could become Greenland’s indispensable economic and security partner without owning it. That might ultimately produce more American influence than coercion ever could.
Grand Strategy or Mercurial Power?
That leaves the central question: is Trump’s Greenland policy grand strategy?
There is unquestionably a strategic foundation beneath it. Greenland occupies vital geography. Russia is militarizing the Arctic. China seeks access and influence. Critical minerals matter. Missile warning matters. Space surveillance matters. Northern sea routes matter. The future political status of Greenland matters.
A serious American president should be thinking about all of those things.
Trump is therefore asking a strategically legitimate question that previous administrations often treated with insufficient urgency: who will shape the Arctic order of the twenty-first century?
But grand strategy is not defined merely by identifying something valuable. It connects objectives, instruments, alliances, resources, time, and consequences. It asks not simply whether the United States can obtain Greenland, but what it actually requires from Greenland, what threat it is trying to prevent, whether the objective can be achieved through existing alliances, what coercion will cost elsewhere, whether greater American control would strengthen NATO or fracture it, and whether threatening Denmark deters Russia or gives Moscow evidence that the Western alliance is dividing itself.
Tariffs may produce temporary submission, but they can also generate long-term resistance. Pressure may secure a concession while weakening the relationships that make the concession useful.
Those questions lead to the collision now developing at the intersection of two red lines.
Washington sees geography it believes it cannot afford to lose. Denmark and Greenland see sovereignty they cannot afford to surrender.
Both can be true.
The challenge of statecraft is preventing those truths from becoming mutually destructive.
For seventy-five years, the United States, Denmark, and Greenland largely solved this problem through an elegant strategic compromise: Danish sovereignty, Greenlandic territory, American military access, and collective NATO defense. The arrangement helped accomplish its Cold War mission without requiring conquest, annexation, or economic intimidation.
While China and Russia Watch in the Distance
Perhaps the twenty-first century requires a new arrangement. American access may need to expand dramatically. NATO’s Arctic defenses may need to be rebuilt. Critical-mineral supply chains may need to be secured, Chinese investment screened more carefully, and Russian activity confronted with considerably greater Western military power.
Those are legitimate subjects for negotiation.
But there is a distinction between power and strategy. Power can compel. Strategy determines when compulsion produces the result you actually want.
The danger in Greenland is not that the United States, Denmark, or Canada intends to start a war. The danger is that allies begin treating one another as strategic problems while Russia and China watch from outside the room.
The Arctic is becoming more important, not less. America therefore needs a durable position in Greenland. Denmark needs credible protection of its sovereignty. Greenlanders need control over their political future. NATO needs a defensible northern flank.
Those interests are not inherently incompatible. Making them incompatible would be a failure of strategy.
That is the warning Americans should take from this extraordinary confrontation.