Greenland Scenario Analysis—Transatlantic Trade and Defense Implications

Greenland

Geopolitical tensions have escalated following President Trump’s renewed intent to acquire Greenland and threats to impose tariffs of 10%—rising to 25% in June—on countries that oppose the move. Talks between U.S. and Danish officials last week made no progress. In response, several European countries—including Germany, the Netherlands, Norway, the UK, and France—have deployed troops to Greenland as part of a symbolic multinational show of support for Denmark.

The facts

Under a 1951 defence agreement, the United States already has extensive rights to operate military bases in Greenland, including control over air and maritime movements. During the Cold War, the U.S. operated 17 bases before consolidating to one. A 2004 amendment, signed by then–Secretary of State Colin Powell, explicitly recognizes Greenland as an equal part of the Kingdom of Denmark. Despite this, U.S. troop levels in Greenland have declined in recent years.

Reaction

Denmark’s response has shifted from surprise to defiance. As a committed NATO ally that has suffered proportionally higher casualties in Afghanistan than the U.S., Copenhagen views the pressure as unacceptable. Greenlanders share this stance: Polls suggest 85%1 oppose joining the U.S., citing reduced autonomy, weaker social protections, and loss of control over natural resources. Only 17%2 of Americans support acquiring Greenland.

There is no pressure from EU partners for Denmark to compromise. Prime Minister Frederiksen is well regarded in Brussels, and EU leaders view a U.S. military seizure as unlikely and self-defeating. Even in that scenario, officials believe NATO could endure, as Europe may not relinquish U.S. nuclear deterrence.

EU response and risks

A forced U.S. takeover could likely trigger EU countermeasures, including sanctions, use of the Anti-Coercion Instrument, digital taxes on U.S. firms, and suspension of progress on a U.S.–EU trade deal. Danish lawmakers are already urging delays to proposed tariff reductions. Such a crisis could accelerate European defence autonomy and reinforce existing plans.

EU officials also see little risk of a U.S. withdrawal from NATO or Ukraine, given that U.S. defence contractors benefit directly from higher European defence spending.