The island of Cyprus constitutes the territorial dimension of the Republic of Cyprus, a full member state of the European Union. Approximately one third of Cyprus has been under Turkish military occupation since 1974. Numerous United Nations Security Council resolutions have held that the occupation and subsequent settlement policies are contrary to international law and must be brought to an end. Yet the European partners of Cyprus—both individually and through the European Union as a whole—have largely confined themselves to cautious, neutral formulations, while in practice concluding customs and other arrangements with Turkey and, at times, supplying advanced weapon systems. These are deployed within a strategic environment in which Turkey threatens Cyprus with further consolidation or expansion of the occupation and threatens Greece with war. NATO’s position in such intra-alliance contingencies is that Article 5 does not apply to threats emanating from one NATO member state against another.
Greenland, by contrast, is an autonomous territory within the Kingdom of Denmark. Denmark is a full member state of the European Union; Greenland, however, is associated with the European Union rather than integrated within it. Since 2025, the President of the United States has publicly challenged Danish sovereignty and Greenlandic autonomy, signalling an intention to annex the territory—whether through purchase, coercive pressure, or even unilateral action. In response, major European states have strongly affirmed Danish sovereignty, including through unprecedented measures such as the dispatch of a combined force and naval patrol to Greenland, alongside threats of economic retaliation. In this case, NATO’s posture has been understood as extending Article 5 protection to Denmark despite the fact that the threatening state is itself a member of the alliance.
The comparative table below illustrates the inconsistency of the European Union across these two cases—Cyprus and Greenland—which are structurally similar in their relevance to sovereignty, territorial integrity, and the selective invocation of international law.
| Dimension | Greenland | Cyprus |
|---|---|---|
| Political status | Autonomous territory within the Kingdom of Denmark | Fully sovereign member state of the European Union |
| Relation to Europe | Indirect (via Denmark) | Direct (full membership of the European Union) |
| Nature of the challenge | Coercive diplomacy and transactional pressure from an ally (the United States) | Long-standing military occupation by a NATO member state (Turkey) |
| Type of sovereignty pressure | Attempted leverage over territory and strategic access | De facto partition sustained by force and institutionalised control |
| Clarity of the legal principle | High clarity (territorial integrity; non-acquisition by coercion) | Maximal clarity (recognised borders; occupation; repeated UN positions) |
| Use of force | None (to date); pressure is political and economic | Continuous presence of foreign troops since 1974 |
| Typical European framing | Immediate, explicit, high-level invocation of international law | Long-term normalisation, procedural language, strategic ambiguity |
| Cost of enforcement | Low to moderate, or even high (diplomatic friction; narrative risk; alliance strain; economic war) | High (direct confrontation with Turkey; alliance strain; economic and political costs) |
| Alliance implications | Transatlantic discomfort, possibly manageable | Direct stress test for NATO cohesion and European intra-alliance bargaining |
| Role of material Interest | Arctic access, resources, and strategic positioning | Arms exports, migration management, regional trade, and alliance stability |
| Function of legal language | Assertive, categorical, public | Restrained, abstract, often implicit |
| Signal to third actors | Sovereignty is defended when Europe is directly implicated | Sovereignty becomes negotiable when enforcement is costly |
| Structural significance | Emerging test case | Long-standing precedent of selective legality |
More here:
Greenland and Cyprus: Sovereignty, Defence, and Silence