Projects · Foreign Policy
Greenland: The Annexation Threat
Trump threatened to seize territory from a NATO ally by military force or economic coercion. Danish PM: "If the U.S. attacks a NATO country militarily, everything stops." Republicans called it "appalling."
Key Facts
Greenland's Population
56,000
Autonomous Danish territory
Tariff Threatened
10–25%
On 8 NATO allies
Military Force Threatened
Yes
Not ruled out publicly
Greenland PM Response
Not for sale
Repeated multiple times
Danish Defence Boost
$4.7B
2025 Arctic spending
NATO Implications
Existential
Multiple analysts
Background
Greenland is an autonomous territory within the Kingdom of Denmark — a founding NATO member since 1949. It has self-governance and the right to self-determination. The island has been part of the Danish realm for over a millennium. Under the 1951 U.S.-Denmark Defense Agreement, the United States maintains military bases on the island (including Pituffik Space Base) in the context of the NATO alliance.
Trump first attempted to purchase Greenland during his first presidency in 2019, and was publicly rebuffed by Danish Prime Minister Mette Frederiksen. His second-term approach was fundamentally different in character — moving from a purchase offer to threats of military force and punitive tariffs against NATO allies, a qualitative escalation that caused an international crisis.
Trump's justifications centred on Arctic security, the importance of Greenland's strategic location between the Arctic and North Atlantic, and the relevance of missile defense projects including the "Golden Dome." He falsely claimed Greenland is a U.S. territory.
The Escalation
January 6, 2025 (before inauguration)
Trump threatens to "tariff Denmark at a very high level"
Before taking office, Trump states he will not rule out economic or military force against Greenland. He threatens Denmark with high tariffs if it does not agree to cede Greenland. Donald Trump Jr. makes a private visit to Greenland; his entourage distributes MAGA hats to locals.
January 20, 2025
Trump inaugurated; states "no going back" on Greenland
On inauguration day, Trump reiterates his demand for "Complete and Total Control of Greenland." Greenland's PM Nielsen: "If we have to choose between the United States and Denmark, we choose Denmark." JD Vance visits Pituffik Space Base in Greenland — without an invitation from Denmark — and gives a speech.
January 2026
Full escalation: military threats, NATO tariff ultimatum
Trump refuses to rule out military invasion. He threatens 10% tariffs (rising to 25%) on "any and all goods" from Denmark, Norway, Sweden, France, Germany, the UK, the Netherlands, and Finland — eight NATO allies — if they don't support his Greenland claim. White House press secretary: "utilizing the U.S. military is always an option at the Commander-in-Chief's disposal." UK PM Starmer: applying tariffs on allies for NATO is "completely wrong."
Largest NATO crisis since founding
January 2026
Republican and allied condemnation
Rep. Don Bacon (R-NE): "This is appalling. Greenland is a NATO ally. Denmark is one of our best friends… it has no upside." Rep. Mike Turner (R): "There certainly is no authority that the President has to use military force to seize territory from a NATO country." Norwegian PM leaks a Trump text message demanding "Complete and Total Control" and attributing Trump's belligerence to not receiving the Nobel Peace Prize.
January 21, 2026
Partial reversal at Davos
At the World Economic Forum in Davos, Trump pledges not to use military force or tariffs to annex Greenland. He appears to repeatedly confuse Iceland with Greenland in his speech. He announces a "framework of a future deal" with NATO Secretary General Mark Rutte — though Rutte does not confirm any deal on Greenland. Tariff threats are withdrawn.
Partial de-escalation
What Was at Stake: NATO
The Alliance Threat
Article 5 of the NATO treaty states that an armed attack against one member is considered an attack against all. If the United States — NATO's most powerful member — were to use military force against Denmark, a founding NATO ally, the mutual defense pledge would become meaningless. Danish PM Frederiksen: "If the United States chooses to attack another NATO country militarily, then everything stops." Norwegian Minister of Foreign Affairs Espen Barth Eide: "The idea of NATO will be broken if the US takes Greenland." The Atlantic Council: Russia, China, and other adversaries would understand that "credible extended deterrence no longer exists for Europe or Canada." (Atlantic Council, January 2026)
European Response
Joint Statement & Military Exercises
Macron, Frederiksen, and five other European leaders signed a joint statement: "Greenland belongs to its people." European nations sent military personnel to Greenland. Denmark committed $4.7 billion to Arctic defense in 2025 — over $2B in January and $2.7B more later in the year. France: the plan was a "grave breach of international law."
Russia & China
Adversaries Welcomed the Tension
Russia's Kremlin officials said the tariff threats were "evidence that the transatlantic alliance was collapsing." Russian state newspaper Rossiyskaya Gazeta praised Trump's push for Greenland and the strain it caused among NATO allies. Republican Rep. Bacon warned the approach was "great for Putin, Xi, and other adversaries who want to see NATO divided."
Greenland's Own Position
Consistent Rejection
Greenland's PM Nielsen repeatedly stated the island is not for sale and is not interested in joining the United States. On January 4, 2026, he called the U.S. rhetoric "completely and utterly unacceptable" and told Trump to give up his "fantasies about annexation." An estimated 5,000 people — a large proportion of Greenland's 56,000 residents — protested in Nuuk holding signs saying "Yankee go home."
Sources & References
Wikipedia — Greenland Crisis
Comprehensive documentation of the escalation timeline, Trump's statements, European responses, and the Davos de-escalation.
Time — Republican Condemnation
Time, January 19, 2026. Documents Republican opposition including Bacon, Turner, and others calling the threats "appalling" and damaging to NATO.
CNN — Tariff Ultimatum & Protests
CNN, January 17–18, 2026. Documents the 10–25% tariff threats against 8 NATO allies and the Nuuk protests.
Atlantic Council — NATO's Darkest Hour
Atlantic Council, January 14, 2026. Analysis of what U.S. military action against Denmark would mean for NATO's Article 5 credibility.
CFR — Europe's Response
CFR, January 17, 2026. Analyzes the European "everything but territory" response strategy and deterrence efforts via congressional outreach.
House of Commons Library — UK Briefing
UK Parliament research briefing on Greenland's legal status, the 1951 defense agreement, and international law implications.