Greenland is a self-governing territory of Denmark, a NATO member. In January 2026 President Trump renewed his call for the United States to acquire it, saying it was needed for US national security and to stop Russia and China gaining a foothold in the Arctic. The White House said military force was an option. Denmark and Greenland’s government rejected any change of sovereignty, and on 17 January Trump announced tariffs on goods from eight European countries that had backed Denmark, to rise unless a deal was reached for the US to buy Greenland.
The European Union warned that it would respond to coercion. On 21 January, after meeting NATO’s Secretary General Mark Rutte in Davos, Trump dropped the tariff threat, said he would not use force and announced a ‘framework’ for a future deal on Arctic security. NATO launched an Arctic mission in February, and on 22 September 2026 the United States, Denmark and Greenland signed a security agreement giving the US new bases while leaving Greenland under Danish sovereignty. Greenland’s parliament approved it on 3 November.
The crisis shows a powerful state using economic coercion, tariffs, against its own allies to pursue a territorial aim, and smaller states and a self-governing territory using international law, sovereignty and self-determination in response. The outcome was a negotiated security agreement rather than a transfer of territory: the US gained new military rights, while Denmark kept sovereignty and Greenland’s right to self-determination was written into the text.
It also tested the EU and NATO. The EU acted as a single trading bloc, preparing countermeasures and backing Denmark, while NATO served as the forum in which the dispute was eased and an Arctic mission was launched. Whether this shows the strength of these institutions or their dependence on the US is open to debate.
The Trump administration argued that Greenland is vital to US national security, to its planned ‘Golden Dome’ missile defence and to keeping Russia and China out of the Arctic. The White House presented the final agreement as giving the US lasting control over security in Greenland at no cost to American taxpayers.
Realists might argue that the US got much of what it wanted, more bases and a say over which other countries can operate in Greenland, and that NATO and the EU eased the crisis by meeting US demands. A Copenhagen academic quoted by Al Jazeera doubted that the January ‘framework’ was more than a face-saving deal.
The tariffs were dropped before they took effect, so the episode does not show whether the EU’s countermeasures or anti-coercion instrument would have worked. The agreement had also not yet come into force at the time of writing.
Greenland’s foreign minister called ratification an important step, but the pro-independence party Naleraq said the agreement brought no economic benefit and that Greenland wants a better deal once it is independent. Seven members abstained in the vote.
Greenland’s parliament approved the agreement on 3 November 2026. It takes effect only after the Danish parliament also approves it; a vote there was scheduled for 19 November 2026.
A recent case of economic coercion between allies that links sovereignty, the EU as a global actor and NATO cohesion in one episode.
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Origin: Human-written · Reviewer: Editor
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