The Republic of Cyprus collaborated closely with the United States, the EU, and other countries -bilaterally and multilaterally- in international counterterrorism efforts in 2021. Since 1974, the island of Cyprus has been de facto divided into the Republic of Cyprus government-controlled area in the southern two thirds of the island, and the northern third administered by the Turkish Cypriots (TCs). A UN peacekeeping force patrols a buffer zone, also called the “Green Line,” that separates the two sides. The buffer zone is largely open to civilian traffic and remains a significant route for the illicit transit of persons, narcotics, and other contraband. The division of the island has impeded counterterrorism cooperation between the two communities and between the Republic of Cyprus and Türkiye, which do not maintain diplomatic relations. This report covers only the Republic of Cyprus. It does not address terrorism or counterterrorism efforts in the areas under the administration of TCs.