Phoenix 24
Washington expands military authority in the strategic Arctic.
Nuuk, Greenland.
The United States, Denmark and Greenland have reached a security agreement that would expand Washington’s military presence on the Arctic island while formally preserving its existing sovereignty arrangements. President Donald Trump announced the agreement on September 18, describing it as granting the United States permanent control over Greenland’s security and the authority to prevent American adversaries from establishing military installations there. Danish and Greenlandic leaders welcomed the arrangement but emphasized that it does not transfer ownership of the territory or compromise its right to self-determination. The agreement is expected to be formally signed during the United Nations General Assembly in New York next week.
Trump presented the arrangement as a response to strategic competition involving Russia and China. According to his announcement, countries considered adversaries of the United States would be prohibited from establishing military bases, maintaining military forces or undertaking sensitive investments in Greenland without Washington’s written approval. The American president has repeatedly argued that the island’s geographical position makes it essential to national security. However, the precise legal scope of the new restrictions has not been publicly disclosed.
Danish Prime Minister Mette Frederiksen emphasized that the agreement recognizes the sovereignty and territorial integrity of the Kingdom of Denmark. She also reaffirmed the Greenlandic population’s right to determine its political future, distinguishing expanded military cooperation from any transfer of territorial authority. Greenland’s Prime Minister Jens-Frederik Nielsen welcomed the arrangement as a means of strengthening the island’s security. Their statements establish an important distinction between Trump’s characterization of permanent security control and the sovereignty guarantees emphasized by Copenhagen and Nuuk.
The agreement builds upon an American military presence that dates back to the Second World War. During the Cold War, the United States reportedly operated 17 military installations in Greenland and stationed more than 10,000 personnel there. Today, its principal remaining facility is Pituffik Space Base, which performs missile warning, missile defense and space surveillance functions. The new arrangement could expand this infrastructure, although the number of additional personnel, facilities and financial commitments remains unspecified.
The European Union has also intensified its engagement with Greenland. European Commission President Ursula von der Leyen visited the territory earlier in September and announced a €200 million partnership intended for investment over the current and following year. Brussels has additionally proposed allocating €530 million to Greenland under its 2028–2034 budget. These commitments reflect growing European interest in Arctic security, infrastructure and the territory’s geopolitical significance.
The diplomatic context remains sensitive. Trump’s earlier statements about acquiring Greenland generated opposition in Denmark, Greenland and other European countries, making sovereignty a central issue in subsequent negotiations. Reuters reported on September 19 that the three parties had not publicly clarified whether the agreement would transfer any formal authority over foreign policy or natural resources. Without the final legal text, its institutional consequences cannot be fully established.
The arrangement illustrates how Arctic security cooperation is evolving amid competition over military infrastructure, strategic geography and access to critical resources. Expanded American capabilities could strengthen coordination among NATO partners, but their implementation will depend on the agreement’s legal provisions and Greenland’s participation in decisions affecting its territory.
Washington has secured an announced framework for broader security cooperation. The unresolved question concerns how permanent American military authority will operate alongside Danish sovereignty and Greenlandic self-government.
La narrativa también es poder. / Narrative is power too.