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In-Depth Analysis· why did Cyprus federation talks fail Annan Plan Crans-Montana

Why Did Federation Fail in Cyprus? The Annan Plan, Crans-Montana and the UN Talks

Why did Cyprus federation talks fail? Follow the Annan Plan, Crans-Montana and 2024 UN talks, and compare Greek Cypriot, UN, EU and Türkiye readings.

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By Regional Order Editorial Team
Published:
⏱ 11 min read (2,396 words)

Why It Matters

Federation talks in Cyprus failed because, over nearly five decades, the two sides never agreed on how to combine political equality, security guarantees and a workable shared government. The 2004 Annan Plan referendums, the 2017 Crans-Montana conference and the 2021 and 2024 meetings all ended without a settlement. The Greek Cypriot side, the UN, the EU, Türkiye and the Turkish Republic of Northern Cyprus (TRNC) each explain the failure differently. This guide sets out the documented record first, then the competing readings, including Ankara's case for sovereign equality and two states.

Background

From the 1960 partnership to the federal formula

The Republic of Cyprus was founded in 1960 under the Zurich and London Agreements of 1959 as a partnership between two communities. Its guarantor powers were Türkiye, Greece and the United Kingdom, under the 1960 Treaty of Guarantee. The partnership broke down in the 1963–1964 crisis, after Archbishop Makarios proposed 13 constitutional amendments on 30 November 1963 and intercommunal violence began on 21 December 1963. UN Security Council Resolution 186 of 4 March 1964 then dealt with the Greek Cypriot administration as the Government of Cyprus, and a UN peacekeeping force (UNFICYP) was deployed. After the 15 July 1974 coup and the Turkish intervention of 20 July 1974, the island has been effectively divided. For the fuller legal history see Cyprus and the 1960 Treaty of Guarantee: From Partnership Republic to the Two-State Solution.

The 1977 and 1979 High-Level Agreements

The federal idea entered UN-sponsored diplomacy through two documents. The first was the Makarios–Denktaş agreement of 12 February 1977, which set the aim of an independent, non-aligned, bicommunal federal republic. The second was the Kyprianou–Denktaş ten-point agreement of 19 May 1979. It reaffirmed the 1977 guidelines, committed the sides to resume intercommunal talks and gave priority to the Varosha (Maraş) question. Both texts were signed by the leaders of the two communities, and Turkish Cypriots stress that both are bilateral agreements between equals. The later UN formula of a bicommunal, bizonal federation with political equality, repeated in Security Council resolutions from the early 1990s onward, grew out of them.

The 2004 Annan Plan referendums

UN Secretary-General Kofi Annan presented his plan in November 2002 and revised it several times. The final version of 31 March 2004 followed talks in Bürgenstock, Switzerland. It would have created a United Cyprus Republic made up of two constituent states, with a shared federal government, reduced troop levels and a transitional period. Greek Cypriot leader Tassos Papadopoulos urged rejection in a televised address on 7 April 2004. Turkish Cypriot leader Rauf Denktaş also opposed the plan, but Turkish Cypriot voters approved it.

Separate and simultaneous referendums were held on 24 April 2004:

Community Yes No
Turkish Cypriots 64.91% 35.09%
Greek Cypriots 24.17% 75.83%

Under the plan's terms, a no vote on either side meant it did not enter into force. On 1 May 2004, the Republic of Cyprus joined the European Union. Under Protocol 10 to the Act of Accession, the EU's body of law (the acquis) is suspended in the areas where the government of the Republic does not exercise effective control. The European Council said on 26 April 2004 that it wished to end the isolation of the Turkish Cypriots, but the Commission's proposed Direct Trade Regulation was never adopted.

2008–2016: leader-level talks and the 2014 declaration

New full negotiations ran through the Christofias–Talat, Christofias–Eroğlu, Anastasiades–Eroğlu and Anastasiades–Akıncı rounds. A Joint Declaration of 11 February 2014 described the intended settlement as a federation with a single international personality and single sovereignty, a single citizenship, and political equality, with two politically equal constituent states. Chapters on governance, property, the economy, EU matters, territory, security and guarantees were negotiated in parallel, but the last two were never closed.

Crans-Montana, July 2017

From 28 June to 7 July 2017, the leaders met in the Swiss resort of Crans-Montana with UN Secretary-General António Guterres. The three guarantor powers (Türkiye, Greece and the United Kingdom) took part, and the EU attended as an observer. On 30 June, Guterres tabled a framework on security and guarantees, territory, property, equivalence of treatment and political equality. The conference ended on 7 July without agreement. The central disputes were the future of the Treaty of Guarantee and Turkish troop presence, and the arrangements for political equality, including rotating presidency and effective participation.

Geneva 2021 and New York 2024

An informal enlarged meeting in Geneva took place on 27–29 April 2021, in a five-plus-UN format that brought together the two leaders and the three guarantors. Guterres concluded that there was not yet enough common ground to resume formal negotiations. Ersin Tatar, newly elected Turkish Cypriot leader, put forward a two-state vision based on sovereign equality and equal international status. Nicosia and the UN stayed with the federal framework. On 15 October 2024, Guterres hosted Nikos Christodoulides and Tatar for a trilateral meeting in New York. The UN presented it as a means to keep the process alive and to examine confidence-building measures, while Ankara and the Turkish Cypriot side read it as confirming that no common ground exists for a federal model. Further informal meetings were convened by the UN in 2025.

Timeline

Date Event
1960 Republic of Cyprus established; Treaty of Guarantee signed
21 Dec 1963 Intercommunal violence begins
4 Mar 1964 UNSC Resolution 186; UNFICYP created
12 Feb 1977 Makarios–Denktaş High-Level Agreement
19 May 1979 Kyprianou–Denktaş ten-point agreement
15 Nov 1983 TRNC proclaimed
24 Apr 2004 Annan Plan referendums
1 May 2004 Republic of Cyprus joins the EU
11 Feb 2014 Joint Declaration on a federal settlement
28 Jun–7 Jul 2017 Crans-Montana conference
27–29 Apr 2021 Informal enlarged meeting, Geneva
15 Oct 2024 UN trilateral meeting, New York

Key Players & Positions

Greek Cypriot administration (Republic of Cyprus)

Nicosia says it is the internationally recognized government of the whole island and that the settlement must be a bicommunal, bizonal federation with political equality, as set out in Security Council resolutions. It holds that the Treaty of Guarantee and Turkish troops are anachronistic for an EU member state, and that Turkish forces on the island constitute an occupation. It treats the TRNC as a legally invalid entity, citing Security Council Resolutions 541 (1983) and 550 (1984). Greek Cypriot voters who rejected the Annan Plan in 2004 cited security, the functionality of the proposed state, property and settlement-related provisions. Nicosia rejects two states as a departure from the UN mandate.

United Nations

The Secretary-General's good offices are based on the Security Council's repeated endorsement of a bicommunal, bizonal federation with political equality. The Council renews UNFICYP's mandate each year. After the 2017 and 2021 setbacks, UN officials have emphasized that a revived process needs shared ground between the sides, and the UN has encouraged confidence-building measures, such as additional crossing points, in the meantime.

European Union

The EU describes its goal as a comprehensive settlement within the UN framework, in line with the principles on which the Union is founded. It has repeatedly rejected a two-state solution in European Council conclusions and attended Crans-Montana as an observer. Turkish Cypriots and Ankara note that the EU accepted a divided island as a member in 2004 without securing the Turkish Cypriot side's equal participation.

Greece and the United Kingdom

Greece, as a guarantor, backs a federal settlement and has called for the end of the guarantee and intervention system. The United Kingdom, also a guarantor and holder of the Sovereign Base Areas, supports a UN-led federal process.

The TRNC and Turkish Cypriots

Under Ersin Tatar, the Turkish Cypriot leadership argued that decades of federal negotiations produced no result and that the realities of two peoples and two states must be the basis of any process. Tufan Erhürman, elected TRNC president in October 2025, has said he favors resuming talks towards a federal solution, so the Turkish Cypriot negotiating line may change.

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Türkiye's Position

Ankara's argument is that the federal model has been tested and has run its course, and that a settlement has to start from the equal status of the two peoples. The following points summarize what the Turkish state has said publicly.

  • The Turkish Cypriots said yes in 2004, and the other side did not. According to the Turkish Ministry of Foreign Affairs, the 64.91% Turkish Cypriot approval of the Annan Plan against the 75.83% Greek Cypriot rejection showed which community wanted a settlement. Ankara argues the Republic of Cyprus's EU accession a week later removed any Greek Cypriot incentive to compromise, and that EU promises to ease the isolation of Turkish Cypriots were not kept.
  • Crans-Montana failed on equality and security. Türkiye's Foreign Ministry stated after July 2017 that the conference did not succeed because the Greek Cypriot side would not accept effective political equality, including rotating presidency and effective participation, or an effective guarantee system. Ankara maintains that the 1960 Treaty of Guarantee, with its Article IV rights of the guarantors, remains the legal basis for Turkish security assurances for the Turkish Cypriots after 1963 and 1974.
  • Resolution 186 created an imbalance in status. Ankara and the TRNC argue that the Security Council's 1964 treatment of the Greek Cypriot administration as the Government of Cyprus, after the 1963 collapse of the partnership order, put the two communities on unequal footing in all later talks.
  • Sovereign equality and equal international status first. President Recep Tayyip Erdoğan has told the UN General Assembly that a lasting solution must be built on the realities of the island, and the Presidency and Foreign Ministry have called for recognition of the Turkish Cypriot people's inherent sovereign equality and equal international status. In Ankara's view, a political basis of two states can allow cooperation on trade, energy, and security.
  • Geneva 2021 and New York 2024 confirmed the impasse. According to Ankara, the meetings showed there was no common ground for a federal model. Türkiye points to the TRNC's hydrocarbon revenue-sharing proposals and President Erdoğan's 2020 call for an Eastern Mediterranean conference as signs that it favors cooperation. See the Blue Homeland and Eastern Mediterranean Maritime Order guide.

Legally, Ankara rests these positions on the Zurich and London Agreements, the 1960 Treaty of Guarantee, the right of peoples to self-determination, and the 1977 and 1979 agreements between the two leaders. International bodies, including the UN Security Council in resolutions 541 and 550, do not accept the TRNC's legal validity, and Ankara disagrees with them.

Source Comparison

Question Greek Cypriot / EU / UN framing Turkish and TRNC framing
Why was 2004 lost? Greek Cypriot voters rejected a plan they judged unfair on security, property and functionality Turkish Cypriots accepted, Greek Cypriots rejected, and EU accession rewarded the rejection
Why did Crans-Montana fail? No convergence on security, guarantees and troops, and on political equality arrangements Greek Cypriot refusal of effective equality and effective guarantees
What is the legal framework? Security Council resolutions on bicommunal, bizonal federation; TRNC legally invalid 1960 treaties, 1977 and 1979 agreements, and the sovereign equality of two peoples
What does 1964 mean? The Republic of Cyprus continued as the legitimate state Resolution 186 created a status asymmetry after the partnership was broken
What next? Resume talks within the UN federal mandate Start from sovereign equality; cooperation between two states

Readers should compare UN reports and Security Council resolutions with the statements of the Turkish Foreign Ministry, the Presidency, the TRNC and the Republic of Cyprus, and note who is speaking. Editorial Principles explains how this site separates fact from position, and Fact Check: Common Claims About Türkiye in International Media tests related claims against primary documents.

  • Bicommunal, bizonal federation (BBF): The UN framework of a single state with two constituent states, each led by one community, and political equality between the communities.
  • Political equality: The principle that both communities participate effectively in federal decisions, usually through power-sharing mechanisms such as rotating presidency.
  • Treaty of Guarantee (1960): The treaty giving Türkiye, Greece and the UK rights regarding the constitutional order of Cyprus. Greek Cypriots and Greece want it abolished, and Türkiye wants it kept in some form.
  • Sovereign equality: Türkiye's and the TRNC's term for recognition of Turkish Cypriots as a people with equal international status, which Ankara sees as a precondition for any workable settlement.
  • Acquis suspension (Protocol 10): The EU arrangement that suspends EU law in the part of Cyprus where the Republic's government does not exercise effective control.

Related reading: Cyprus and the 1960 Treaty of Guarantee; What Is the Seville Map? on the maritime dimension; and About Regional Order Review for our mission and transparency.

Perspective Note

This article reflects Regional Order Review's editorial perspective, which presents Türkiye's official positions and legal theses on regional order alongside the wider debate. Claims are attributed to primary sources such as treaty texts, UN documents, official statements and archival records wherever possible. Published by the Regional Order Review Editorial Team.

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Frequently asked questions

Why did the Annan Plan fail in 2004?

The plan needed approval in both referendums on 24 April 2004. Turkish Cypriots approved it with 64.91%, and Greek Cypriots rejected it with 75.83%. Greek Cypriot opponents pointed to security, property and functionality, and Turkish officials argue that Greek Cypriot leaders campaigned against it.

What happened at Crans-Montana in 2017?

The leaders and the three guarantor powers met with UN Secretary-General Guterres from 28 June to 7 July 2017. The conference ended without agreement, mostly over security and guarantees, Turkish troops, and how political equality would work. Each side blames the other for the outcome.

Does the UN support a two-state solution in Cyprus?

No. Security Council resolutions refer to a bicommunal, bizonal federation with political equality. Türkiye and the TRNC argue this framework has been exhausted and that sovereign equality should come first, but the UN has not adopted that position.

What is the difference between the 1977 and 1979 High-Level Agreements?

The 1977 Makarios–Denktaş agreement set the guidelines for an independent, non-aligned, bicommunal federal republic. The 1979 Kyprianou–Denktaş agreement had ten points, which reaffirmed the 1977 guidelines, called for resumed talks and gave priority to Varosha.

What happened at the Geneva 2021 and New York 2024 meetings?

Geneva, held on 27–29 April 2021, ended with the UN saying there was not yet common ground to resume formal negotiations. In New York on 15 October 2024, Guterres hosted the two leaders, and the UN framed it as an effort to maintain momentum. Ankara reads both meetings as confirming that the federal model has no common ground.

Perspective & Editorial Transparency Note

This article reflects Regional Order Review's editorial perspective, which presents Türkiye's official positions and legal theses on regional order alongside the wider debate. Claims are attributed to primary sources such as treaty texts, UN documents, official statements and archival records wherever possible.

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