When NATO was founded in 1949, Cyprus was a crown colony of the United Kingdom and as such the UK's NATO membership also applied to British Cyprus.[4][5]
Since the 1974 invasion, the main foreign policy goal of the Republic of Cyprus has been to secure the withdrawal of Turkish forces and the reunification of the island under the most favorable constitutional and territorial terms possible.[18][19] This campaign has been pursued primarily through international forums such as the United Nations and the Non-Aligned Movement, and in recent years the European Union.[20][21][22]
Since the entry into force of the Treaty of Lisbon in 2009, the EU mutual solidarity clause applies to Cyprus along with other EU member states:[31][32]
If a Member State is the victim of armed aggression on its territory, the other Member States shall have towards it an obligation of aid and assistance by all the means in their power, in accordance with Article 51 of the United Nations Charter. This shall not prejudice the specific character of the security and defence policy of certain Member States. [...]
Article 42.2 specifies however that NATO shall be the main forum for the implementation of collective self-defence for EU member states that are also NATO members.[33] The other EU member states that are outside NATO resort to the EU's Common Security and Defence Policy (CSDP, which has a much smaller structures and capabilities than NATO's command structure) for the implementation of collective self-defence are Austria, Ireland, and Malta.[citation needed]
Integration into NATO
The ongoing Cyprus dispute complicates Cyprus' relations with NATO.[34][35] Any treaty concerning Cyprus' participation in NATO, either as a full member, PfP or Euro-Atlantic Partnership Council, would likely be vetoed by Turkey, a full member of NATO, unless the dispute is resolved first.[36][37]
NATO membership for a reunified Cyprus has been proposed as a solution to the question of security guarantees, given that all three of the current guarantors under the Treaty of Guarantee (1960) (Greece, Turkey and the United Kingdom) are already NATO members.[38][39]
After the 2023 presidential election, Anastasiades' foreign minister Christodoulides succeeded him as President. In November 2024, Christodoulides reversed his previous stance and revealed a plan to deepen Cyprus' relations with NATO and eventually join as a full member. Under the first phase of the plan, Cyprus would seek to join preparatory organisations linked to NATO, which would require progress in resolving the Cyprus dispute with NATO member Turkey and improvements to EU–Turkey relations. Practical steps of the plan include securing a longer-term exemption from the U.S. arms embargo, expanding joint military training opportunities for the Cypriot National Guard at U.S. military academies, and modernisation of Cyprus' defence infrastructure to meet NATO standards.[47][48] Christodoulides stated that "the U.S. response has been very positive" and that these steps "will ensure that, once all conditions are met, Cyprus can join NATO".[49][50]
Cyprus's foreign relations with NATO member states
^Tziarras, Zenonas (2022). The Foreign Policy of the Republic of Cyprus: Local, Regional and International Dimensions. Springer Nature. ISBN978-3-030-91177-5. The question of whether the RoC should join NATO or not came again to the fore during the Zurich Conference (5-11 February 1959) held by Greece and Turkey. One of the articles in the "Gentle- men's Agreement" concluded by Konstantinos Karamanlis and Adnan Menderes, the Prime Ministers of Greece and Turkey, respectively, stated that the two countries would support the accession of the RoC to NATO (Mallinson 2005, 49).