Trump Announces US-Denmark-Greenland Security Pact Granting 'Permanent Control' Over Island's Defense

On September 18, 2026, President Donald Trump announced via Truth Social a security agreement with Denmark and Greenland that he described as granting the United States 'permanent control over security, and all other needs, in Greenland.' The deal, which Trump called an 'Infinite Life' agreement with no expiration or cost to the US, expands American military access, basing, and overflight rights while prohibiting non-NATO adversaries like Russia and China from establishing bases or making sensitive investments without US approval.

Mainstream reporting confirms the announcement followed months of tensions, including prior US threats regarding the strategically vital Arctic territory. Danish Prime Minister Mette Frederiksen and Greenland Prime Minister Jens-Frederik Nielsen issued joint statements welcoming the pact, noting it will be signed at the UN General Assembly the following week and emphasizing that it preserves Danish sovereignty, territorial integrity, and Greenland's right to self-determination. The agreement builds on existing Cold War-era arrangements but formalizes expanded US presence without transferring ownership.

US officials, including Secretary of State Marco Rubio, hailed it as a 'historic deal' addressing national security concerns in the resource-rich region. However, the full text remains unreleased, and the deal requires parliamentary ratification in Denmark and Greenland. Analysts note it stops short of outright US acquisition while securing long-term strategic dominance amid great-power competition in the Arctic.