United Nations Buffer Zone in Cyprus

The United Nations Buffer Zone in Cyprus is a demilitarised zone, patrolled by the United Nations Peacekeeping Force in Cyprus (UNFICYP), that was established in 1974 following the Turkish invasion of Cyprus, and de facto partitions the island into the area controlled by the Government of Cyprus (which is the de jure government for the entire island save for the British Sovereign Base Areas) in the South and that under the administration of the Turkish Republic of Northern Cyprus in the North. The zone runs for more than 180.5 kilometres (112.2 mi) along what is colloquially known as the Green Line and has an area of 346 square kilometres (134 sq mi).

The zone stretches for 180 km from the western part of near Kato Pyrgos to the east just south of Famagusta. It cuts through the centre of the old town of Nicosia, separating the city into southern and northern sections. There is also a buffer zone around the Kokkina exclave in western Cyprus. The width of the zone ranges from 3.3 metres (11 ft) in central Nicosia, to 7.4 kilometres (4.6 mi) at the village of Athienou. There is no buffer zone along the common border between the eastern British Sovereign Base Area and the area under Turkish Cypriot control.

The buffer zone is home to some 10,000 people and there are several villages and farms located within. The village of Pyla is famous for being the only village on Cyprus where Greeks and Turks live side by side. Other villages are Dhenia, Mammari, Athienou and Troulli while Lymbia lies partially within the zone.

Turkish forces built a barrier on the zone's northern side, consisting mainly of barbed-wire fencing, concrete wall segments, watchtowers, anti-tank ditches, and minefields. This line is also referred to as the Attila Line on some maps, named after the Turkish code-name for the 1974 military intervention: Operation Atilla. The closed off zone has become a haven for Cyprus' wildlife, an example of an involuntary park.