Schengen Dilemma Amid Colonial Legacies: British Military Bases, the Green Line, and Cyprus's Accession Threshold

Cyprus stands only one step away from joining the Schengen Area, but that step is blocked by two structural legacies of history: British military bases preserved from the colonial era, and the island's partition caused by the 1974 military intervention.

According to DW, the European Commission issued a positive technical assessment of Cyprus in July this year, confirming that it has met the technical conditions for joining the Schengen Area after implementing 120 technical recommendations made since 2021. These recommendations cover border control, visa policy, access to EU security databases and police cooperation, requiring coordinated progress in technical upgrades, legislative and administrative reforms. On 1 October 2026, Cyprus Deputy Migration Minister Nicolas Ioannides confirmed to DW: "All of the recommendations made by the European Commission have been implemented."

However, accession to Schengen requires unanimous approval by the Council of the European Union and consultation with the European Parliament. According to information obtained by DW, Austria and the Netherlands have informally expressed reservations regarding security issues linked to the Green Line and British sovereign base areas. Both countries previously opposed the accession of Bulgaria and Romania to the Schengen Area, and the current reservations likewise revolve around security and the integrity of territorial control.

The Green Line issue is the most intractable. This ceasefire line, some 180 kilometres long and in place since the 1974 Turkish military intervention, separates the area controlled by the internationally recognised Republic of Cyprus from the Turkish-controlled northern part of the island. The buffer zone is supervised by the United Nations Peacekeeping Force in Cyprus (UNFICYP), and the Green Line itself is not an internationally recognised border. People on both sides cross through nine designated crossing points, governed by a special EU regulation.

This arrangement is fundamentally at odds with the Schengen regime: the Republic of Cyprus does not exercise effective control over the entire Green Line, and Nicosia rejects any arrangement that would turn the Green Line into an external border in a legal or even symbolic sense. Nasia Hadjigeorgiou, Associate Professor in Transitional Justice and Human Rights at UCLan Cyprus Law School, told DW: "The question raised by some Schengen states is that the Republic of Cyprus does not control the whole Green Line. It may control the crossing points, but there remain large open stretches." She added: "For it to be considered to have full control, either the Cyprus problem has to be resolved, or a strictly controlled physical border has to be built. There is no other way."

The British sovereign base areas constitute another institutional obstacle. The two bases of Akrotiri and Dhekelia were retained as British sovereign territory upon Cyprus's independence in 1960, covering roughly 254 square kilometres in total, or about 3 percent of the island. The core difficulty lies in the Dhekelia base, which borders both the Republic of Cyprus-controlled area and the internationally unrecognised "Turkish Republic of Northern Cyprus." The two crossing points of Pergamos and Strovilia are located in this area, with border checks carried out by British authorities, even though the United Kingdom is no longer a member of the European Union.

Hadjigeorgiou explained the anomaly of this arrangement to DW: "The issue is that one side of the area in question is controlled by the authorities of the occupied northern area, and the other side by the British sovereign base area." "The result is that the United Kingdom will decide who can enter and leave the Schengen Area. That is anomalous, because normally it is the Schengen member states themselves that decide who can enter and exit this area." According to information obtained by DW, Nicosia and the British sovereign base area authorities have begun discussions on upgrading the border-check procedures at the Pergamos and Strovilia crossing points to bring them into line with EU requirements.

Cyprus's diplomatic efforts are being pursued intensively. On 1 October, Ioannides held bilateral meetings with his counterparts officials from Austria, the Netherlands and Finland on the margins of a meeting of the EU Justice and Home Affairs Council in Luxembourg. On 7 October, the summit of the Group of Nine Mediterranean countries (MED9) was held in Croatia, and the leaders of the participating countries, in a joint statement, welcomed the European Commission's positive assessment and called for the timely completion of Cyprus's accession process.

However, several anonymous diplomatic sources told DW that despite the positive signals, Cyprus's accession is far from a foregone conclusion. These sources believe that the EU is highly likely to choose to wait for progress in efforts to resolve the Cyprus problem before making a decision that could bring additional political and practical complications.

For Cyprus, the cost of this wait is institutional: a member state that has implemented 120 technical upgrades and received the European Commission's endorsement is unable, because of fragmented territorial control, to fully enter a core mechanism of the political union it has already joined. For the EU, the question is whether a colonial enclave controlled by a third country, yet with de facto influence over the Schengen external border, should be allowed to perpetuate its status without affecting the basic logic of the Schengen Area as a closed space of free movement of persons.