President Donald Trump’s renewed push to acquire Greenland has triggered fresh warnings from global economists, who argue that the strategy risks exposing a long standing weakness in the U.S. economy, its reliance on foreign funding to sustain record levels of public debt.
The Trump Greenland tariff threat, announced over the weekend via Truth Social, proposes sweeping tariffs on several European countries unless they support U.S. efforts to purchase the Arctic territory. Economists caution that while the United States remains the world’s largest economy, financial markets may prove less tolerant of aggressive geopolitical bargaining tied to trade.
Tariffs as leverage, but at what cost?
Under the proposal, goods from Denmark, Norway, Sweden, France, Germany, the United Kingdom, the Netherlands, and Finland would face a 10 percent tariff starting February 1, 2026, rising to 25 percent by June unless negotiations over Greenland move forward. Greenland, an autonomous territory within the Kingdom of Denmark, is not for sale, a fact repeatedly underscored by Danish and European officials.
Trump has framed the issue as a matter of national security, arguing that U.S. ownership is necessary to counter growing Chinese and Russian influence in the Arctic. He has also claimed Denmark lacks the resources to adequately defend the territory. The comments have unsettled European allies already strained by months of disputes over defense spending, industrial policy, and trade.
While tariffs have long been a favored negotiating tool for Trump, analysts warn that this latest move may test market confidence rather than political resolve.
Deutsche Bank flags the “Achilles heel”
Economists at Deutsche Bank argue that the administration may be underestimating how sensitive investors are to signs of fiscal instability. Jim Reid, the bank’s global head of macro research, pointed to recent episodes where sharp moves in U.S. Treasury yields forced a rapid policy rethink.
In a note to clients, Reid described America’s “twin deficits”, the fiscal deficit and the current account deficit, as the country’s primary vulnerability. While the U.S. holds significant economic influence, he warned it does not control all the funding decisions that underpin its borrowing.
According to U.S. Treasury data, total federal debt has climbed to roughly $38 trillion. A substantial share is held domestically, including by the Federal Reserve, but around $8 trillion is owned by foreign governments and overseas investors. That exposure leaves the U.S. sensitive to shifts in global sentiment, particularly if allies feel pressured by trade threats.
Europe’s quiet leverage over Washington
Economists at ING note that Europe is the largest collective foreign holder of U.S. assets, a relationship that underscores both mutual dependence and potential leverage. While European governments cannot compel private investors to sell U.S. debt, the scale of European exposure remains a factor markets closely watch.
The possibility of political retaliation has also grown. French President Emmanuel Macron has suggested the European Union should consider activating its Anti-Coercion Instrument, a legal framework designed to counter economic pressure from foreign powers.
The ACI allows the E.U. to restrict market access for foreign companies, limit participation in public procurement, curb investment flows, and impose targeted trade measures. Officials have stressed that triggering the mechanism does not guarantee immediate action but signals readiness to escalate if negotiations fail.
Trade retaliation moves from theory to policy
Analysts at Goldman Sachs believe European leaders are actively weighing these options. The bank’s economists note that the ACI was crafted for precisely this type of scenario, even if it was not originally intended to be deployed against a close ally.
In addition to regulatory measures, the E.U. could impose tariffs on up to $100 billion of U.S. imports. Services may be a particular pressure point, as Europe runs a surplus in services trade with the U.S., giving it asymmetric leverage in sectors such as finance, technology, and consulting.
For now, markets appear cautious rather than alarmed. Still, Deutsche Bank’s warning highlights a broader concern, aggressive trade tactics risk colliding with America’s dependence on global capital. As negotiations over Greenland continue, investors will be watching not just diplomatic statements but the reaction of bond markets that ultimately finance U.S. power.
