The most analytically informative feature of the announced US-Denmark-Greenland arrangement is that two senior participants are describing the same document in language that sits in tension. President Donald Trump has said the agreement grants the US “permanent control over security, and all other needs” in Greenland and bars US adversaries from maintaining a military presence or making “sensitive investments” without US approval. The joint statement from Prime Minister Mette Frederiksen and Prime Minister Jens-Frederik Nielsen frames the deal as one that “strengthens our common security in the Arctic and the North Atlantic area” while recognizing “the sovereignty and territorial integrity of the kingdom and the right of the Greenlandic people to self-determination.” UK Liberal Democrat leader Sir Ed Davey, speaking at his party conference in a more adversarial register, characterized the outcome as a “pretend” victory and “almost a carbon copy of the agreement that’s persisted since the 1950s.” Roger Fisher, William Ury and Bruce Patton, in their Harvard Negotiation Project framework, would treat this not as a substantive disagreement over terms but as a perception-gap people-problem that, on their account, must be separated from the underlying bargaining and handled independently if any integrative agreement is to function. The publication of no operative text compounds that diagnosis. Without the language on the page, each side can preserve its preferred framing, and the dispute over what was agreed becomes itself an obstacle to implementation — including, per the joint statement, the “necessary parliamentary procedures to enter into force.” UK Prime Minister Andy Burnham, for his part, welcomed the deal in advance of his first meeting with Trump at the UN General Assembly and congratulated Frederiksen on the negotiation; the article records his role as a downstream endorser of the framework rather than as a co-negotiator of its terms.

Stated positions and the interests underneath them. Three positions are recorded in the substrate. The US position, as Trump stated it on Truth Social, is “permanent control over security, and all other needs” coupled with a veto on adversary military presence and adversary “sensitive investments” in Greenland. The Danish position, as Frederiksen expressed it, is that the deal recognizes “the sovereignty and territorial integrity of the kingdom” alongside the Greenlandic right to self-determination. The Greenlandic position, expressed jointly with Denmark, is that self-determination is recognized as part of the framework. Beneath those positions sit interests that the article confirms for some parties and that can only be inferred for others. Confirmed US interests include Arctic security against Russia and China, mineral access and strategic location, all cited in the article’s description of Trump’s earlier public arguments. The article’s record of Trump’s Truth Social framing — “no cost to the United States” and the characterization that the deal permits the US “to do what is necessary” to “secure and defend the security of Greenland” — is itself the substrate evidence of a victory register on the US side, read on this negotiation rather than imported from elsewhere. Confirmed Danish and Greenlandic interests include preservation of sovereignty, retention of the alliance relationship with Washington, and avoidance of the coercive pressure Trump applied for much of the preceding year. Inferred Greenlandic interests include the economic returns that self-determination rhetoric has long promised Greenlanders and insulation from being treated as a bargaining chip between great powers. The Fisher-Ury move from position to interest matters here because the published positions appear to point in opposite directions while several underlying interests — security from extra-regional adversaries, stability of the alliance, continued Greenlandic self-government — are shared.

The people-problem in this specific negotiation. Three diagnostic features stand out. First, the perception gap just described: the same document has been described by its principal signatories as both a transfer of “permanent control” and as a reaffirmation of sovereignty. Second, an emotional trigger on the Danish and Greenlandic side — the sovereignty-identity stake — that, on Fisher and Ury’s account, must be insulated from the substantive bargaining. Frederiksen’s reference to “the sovereignty and territorial integrity of the kingdom” is not a procedural formulation; it is the load-bearing diplomatic language the Danish side required in order to sign at all. Third, a communication failure with operational consequences: no text has been released. The joint statement says the agreement would still need to go through “the necessary parliamentary procedures to enter into force,” and parliamentarians on both sides of the Atlantic will be asked to vote on a document whose operative provisions are not in the public record. That ratification-stage condition is, on Fisher-Ury analysis, the most remediable of the three: the act of publication itself narrows the perception gap, and parliamentarians in Copenhagen, Nuuk and Washington become the constituency whose consent converts any signing into a binding instrument. NATO’s parallel stake — the article records the alliance’s line that the agreement would help stabilise the region — adds a fourth layer to the perception gap, because the framework’s reception inside NATO’s collective-defense architecture is itself a function of how the published text reads alongside Article 5 and Article 6 of the North Atlantic Treaty.

Objective criteria the framework could use. Fisher and Ury identify objective criteria as standards independent of either party’s will that can be invoked to test a proposed term. Several are available here. The 1951 Defense Agreement between Denmark and the United States — the standing bilateral instrument to which Davey’s “carbon copy since the 1950s” formulation refers — is the comparator against which any new text can be measured. The North Atlantic Treaty’s Article 5 and Article 6 define the territory covered by collective defense and would test any clause that purports to extend US operational control. UNCLOS — the United Nations Convention on the Law of the Sea, which has largely superseded the 1958 Geneva Convention on the Continental Shelf — defines sovereign rights over the maritime zones Greenland administers and would test any “sensitive investments” condition that touches resource extraction. Greenland’s 2009 Self-Government Act, which the article does not name but which any Greenlandic MP will read against, defines which decisions Copenhagen retains and which Nuuk has already taken. A framework that survives all four tests simultaneously would be one in which Trump’s “permanent control” language and Frederiksen’s “sovereignty and territorial integrity” language are both reconcilable with the underlying instruments.

Options for mutual gain. The Fisher-Ury interest-based options test is whether a proposed move satisfies more interest on more sides than the apparent position does. Three integrative moves appear responsive to the interest pattern identified above. First, joint operational planning for Arctic monitoring, framed under existing NATO and bilateral instruments, that delivers US-confirmed interest in adversary containment while routing decisions through Danish and Greenlandic authority — addressing the security interest without altering the sovereignty language. Second, an investment-review mechanism for “sensitive” sectors that defines which categories trigger review, applies to non-adversary investors as well as adversary ones, and reserves final authority to Greenlandic self-government institutions — addressing the US-confirmed interest in adversary exclusion while insulating the sovereignty-identity stake. Third, an economic-returns protocol tying extractive-sector activity to Greenland’s Self-Government Act revenue framework — addressing the inferred Greenlandic economic interest and the inferred US interest in mineral access in a single instrument. Each of these is responsive to a confirmed or inferred interest pattern; none is a generic compromise position.

Alternatives if no agreement — hypothesis-flagged. Fisher and Ury frame the test of any negotiation as the comparison between a possible agreement and the Best Alternative to a Negotiated Agreement (BATNA) on each side. The US BATNA, as the article describes it, is the continuation of the pressure campaign Trump ran for the preceding year, including the public threats to “take” Greenland. That alternative carries the cost of a documented rupture with a NATO ally, the loss of the legal cover any ratified framework would provide, and continued exposure of the Greenlandic and Danish publics to rhetoric that has already produced protests in Nuuk. The Danish and Greenlandic BATNA is the 1951 framework as it has stood since the 1950s — which is the alternative Davey’s “carbon copy” formulation implies the deal is functionally equivalent to — supplemented, on the inferred side, by closer European and Canadian security cooperation. The hypothesis-flagged risk on that side is that the 1951 framework alone, without an instrument that registers US adversary concerns, leaves the underlying Danish and Greenlandic interest in Arctic security partially unserved; the available reporting does not confirm whether Copenhagen and Nuuk judge that risk acceptable. The walk-away point for Denmark and Greenland, on Fisher-Ury analysis, is the moment any signing language would require parliamentary defenders in Copenhagen and Nuuk to defend a text incompatible with “sovereignty and territorial integrity” as those terms are read in Danish and Greenlandic law. The walk-away point for the US is the moment any signing language would require the administration to defend a text that does not, in operative terms, give the security veto Trump has publicly claimed.

The single decisive question. The publication of the text is the test. The article records that Trump has claimed “permanent control over security, and all other needs,” that Frederiksen and Nielsen have claimed sovereignty and self-determination are recognized, and that the joint statement says the agreement is subject to “the necessary parliamentary procedures to enter into force.” Those three claims are reconcilable in principle — the standing 1951 framework already operates as the worked example, granting US operational rights in Greenland while preserving Danish sovereignty on the page — but the reconciliation has to be visible in the new text and to survive the parliamentary procedures the joint statement invokes. Until it is, the framing gap will do the work that an unresolved people-problem always does in Fisher-Ury analysis: it will be the obstacle the parties negotiate around instead of through. The act of publication, properly drafted, is itself the integrative move — and ratification by the parliaments on both sides of the Atlantic is the procedural mechanism through which that integrative move becomes binding rather than performative.

Analytical techniques used in this piece

This analysis applies the methods below. Each links to a short, plain-English explainer you can read and reuse.

Principled Negotiation
Works a negotiation from interests, options, and objective criteria rather than positions.