US President Donald Trump, Danish Prime Minister Mette Frederiksen and Greenland Prime Minister Jens-Frederik Nielsen have signed a trilateral security agreement on Greenland, aimed at strengthening security in the Arctic and North Atlantic region.
Under the agreement, the United States will be able to expand its military presence in Greenland, including upgrades to the Pituffik Space Base and the development of additional defence facilities.
The deal also prevents non-NATO countries from establishing military bases on the island.
Trump said the agreement would allow the United States to strengthen its security presence in Greenland and monitor growing Russian and Chinese activity in the strategically important Arctic region.
The deal follows months of tensions between Washington, Copenhagen and Nuuk after Trump repeatedly expressed interest in gaining greater control over Greenland.
Danish Prime Minister Frederiksen said the agreement strengthens NATO and security in the Arctic and North Atlantic while respecting the sovereignty and territorial integrity of the Kingdom of Denmark and the Greenlandic people's right to self-determination.
The agreement is also designed to remain in effect if Greenland becomes independent, provided it remains part of NATO, according to reports.
Greenland, which is a self-governing territory within the Kingdom of Denmark, has significant strategic importance because of its location between North America and the Arctic.
The region has also attracted growing attention because of its natural resources and emerging Arctic shipping routes.
The agreement marks a shift from months of diplomatic tension toward closer security cooperation between the United States, Denmark, and Greenland, although its implementation will depend on the required legal and parliamentary procedures.