# US and Denmark reach deal on Greenland military presence Agreement ensures US security control while respecting Danish sovereignty - **Source:** [Fortune | FORTUNE](https://brifing.si/source/769282ef-327a-4454-909a-3c7936216004) - **Published:** 2026-09-18 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/8d8ca34e-6f95-49d3-8f79-b8d8079a5be9 ## Deal ends acquisition threats The agreement comes after months of Trump threatening to acquire Greenland by force from Denmark, a NATO ally. The deal gives the US permanent control over security in Greenland while keeping the territory under Danish sovereignty. All three governments will sign the agreement next week during the UN General Assembly, though it still requires parliamentary approval from Denmark and Greenland. ## Strategic military expansion The US will immediately begin developing a larger military presence in mineral-rich Greenland. The agreement bans non-NATO bases and limits adversary investments, specifically blocking Chinese and Russian military presence. Secretary of State Marco Rubio called it a 'historic deal' that permanently addresses US national security concerns in the region. ## Longstanding defense importance Greenland has been crucial to North American defense since WWII when the US occupied it to prevent Nazi control. The US maintains the Pituffik Space Base, established under the 1951 Defense of Greenland Treaty, which supports missile warning and space surveillance. Over two-thirds of Greenland lies within the Arctic Circle, making it strategically vital for monitoring northern approaches. ## Diplomatic damage control Trump's repeated threats to seize Greenland strained NATO relations and damaged the US image in Europe. Danish officials had consistently stated Greenland wasn't for sale while condemning US intelligence gathering. The Atlantic Council noted these actions were seen as attacks on sovereignty that will require significant diplomatic repair efforts. ## Sovereignty protections The agreement explicitly recognizes Greenland and Denmark's sovereignty and territorial integrity while upholding self-determination rights. Greenland's Prime Minister stated the deal benefits all parties by acknowledging Greenland's interests in international cooperation. This balanced approach contrasts with Trump's earlier unilateral demands for acquisition. ## Arctic security framework The deal creates a new security architecture for the Arctic region by formalizing US defense responsibilities while respecting Danish governance. It prevents great power competition by excluding Chinese and Russian bases, addressing what the State Department called a key national security concern. The arrangement builds on existing NATO cooperation frameworks. ## Commercial implications Beyond military aspects, the agreement strengthens US commercial interests in Greenland, known for its mineral resources. Danish officials had expressed willingness to expand both military and economic cooperation prior to the deal. The arrangement provides stability for future resource development while maintaining local control over economic decisions. ## Strategic normalization The agreement represents a return to traditional diplomatic channels after Trump's unconventional threats. By combining security assurances with sovereignty protections, it resolves what Denmark viewed as an existential crisis. The deal establishes a predictable framework for Arctic security management amid growing great power interest in the region. ## Sources covering this story - https://fortune.com/2026/09/18/greenland-trump-denmark-control-us-military-presence/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._