Denmark, US, Greenland Seal Arctic Security Deal Under NATO

Leadership News | 22-09-2026 12:55am |

Denmark, Greenland, and the United States are expected to sign a new security agreement on Greenland on Tuesday, with Copenhagen saying the deal will place greater responsibility for Arctic security under NATO. The agreement is expected to be signed on the sidelines of the United Nations General Assembly in New York, following months of diplomatic tensions over US President Donald Trump's demands for greater control over Greenland. The full text of the agreement has not been made public, leaving key details unclear, including whether it will amend the 1951 defence agreement that provides the legal basis for the US military presence in Greenland. Trump, in a post on Truth Social on Friday, claimed that the agreement would give the United States permanent control over security and all other needs in Greenland, and said no US adversary would be allowed to establish a base or maintain a military presence on the island without Washington's written approval.

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