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Greenland: the US-Denmark Security Deal

Greenland is an autonomous territory of Denmark, and the United States, Denmark and Greenland have agreed to expand the American military presence there. Sovereignty stays with Denmark; in return Washington says it gains lasting access, basing and overflight rights, plus the power to keep rival powers from building bases or buying into sensitive assets on the island. Beyond the Pituffik Space Base, the deal is expected to open two further sites. Announced on 18 September 2026, it was due to be signed by the three leaders at the UN General Assembly in New York on 22 September; the parliaments of Denmark and Greenland must approve it before it takes effect.

Last updated 22 September 20264 min read
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Named the two sites the deal is expected to open - Mestersvig and Narsarsuaq, alongside the existing Pituffik Space Base - and dated the signing: 22 September 2026, at the UN General Assembly in New York, with the leaders of the three governments. The text is still unpublished, and whether it amends the 1951 defence treaty or stands as a new framework is unknown; the Danish and Greenlandic parliaments must approve it before it takes effect.

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