← Resources · September 26, 2026
International Relations GS1GS2 3 min read

US-Denmark-Greenland Security Deal: Two New US Bases and the Race for the Arctic

What happened
01

The United States, Denmark and Greenland signed a security agreement on 22 September 2026, on the sidelines of the UN General Assembly in New York.

02

Under the deal, the US will set up two new military bases in Greenland: one at Narsarsuaq in the south and one at Mestersvig on the east coast. The two sites are roughly 950 miles (about 1,500 km) apart.

03

Narsarsuaq was once home to a US base called Bluie West One, which the US closed in the 1950s. Mestersvig is a small Danish military outpost used by the Sirius Dog Sled Patrol, a Danish special forces unit that guards Denmark's sovereignty in Greenland's remote north-east.

04

The agreement keeps Greenland under Danish sovereignty (the legal right to rule a territory). But it gives US aircraft broad rights to fly over and land in Greenland and its territorial waters, along with undersea access. It has no end date.

05

The deal also says no country outside NATO can set up a military base or a long-term military presence in Greenland without the agreement of all three parties. This is aimed at keeping out Russia and China.

06

The deal follows months of tension in 2026, when the US had pushed for control of Greenland. It is part of a wider competition among big powers for influence in the Arctic, where melting ice is opening new sea routes and access to minerals.

Static topic 1 of 2 · International Relations

Greenland: Geography, Self-Rule and Strategic Significance

Greenland is the world's largest island. It lies in the far north of the Atlantic Ocean, between North America and Europe, and most of it is inside the Arctic Circle. It is not an independent country. It is a self-governing territory inside the Kingdom of Denmark: Greenland runs most of its own affairs, but Denmark still handles its defence and foreign policy.

Connection to this news

The new deal shows why Greenland's location matters so much. Under it, the US gets two new bases at Narsarsuaq and Mestersvig, adding to Pituffik Space Base, while Denmark keeps sovereignty and Greenland keeps its self-rule. The clause keeping out non-NATO militaries shows that the competition with Russia and China in the Arctic is the main reason behind the deal.

Static topic 2 of 2 · International Relations

Arctic Council: Members, Observers and India's Role

The Arctic Council is the main forum where the countries of the Arctic region work together. It has 8 member countries, all of which have land in the Arctic. It deals with environmental protection and sustainable development in the Arctic. It does not deal with military or security matters, and it is a forum, not a treaty-based international organisation.

Connection to this news

The US-Greenland deal shows exactly the kind of issue the Arctic Council cannot handle, because the Council is barred from military security matters. As Denmark chairs the Council for 2025 to 2027, a military deal about Greenland adds pressure on the idea of the Arctic as a zone of peaceful cooperation. For India, an observer, it is a reminder that the Arctic is turning into an area of big-power competition.

Key facts & data
  • US-Denmark-Greenland security agreement signed: 22 September 2026, at the UN General Assembly, New York
  • New US bases: Narsarsuaq (south Greenland, former Bluie West One) and Mestersvig (east Greenland, used by Denmark's Sirius Dog Sled Patrol); about 950 miles apart
  • Existing US base: Pituffik Space Base (formerly Thule Air Base, renamed April 2023)
  • Non-NATO countries cannot set up bases or a persistent military presence without approval of all three parties; the deal has no end date
  • Greenland: area about 2.16 million sq km, about 80% ice-covered, population about 56,000, capital Nuuk
  • Self-Government Act in force from 21 June 2009; Home Rule 1979; left the EEC 1985
  • Arctic Council: 8 members, 6 Permanent Participants, 13 observer states; India an observer since 2013
  • India's Arctic Policy: March 2022, six pillars; Himadri station opened 2008 at Ny-Ă…lesund, Svalbard
Read it? Now lock it in. The quiz for this day’s brief covers this story.
Take the quiz