The Cyprus Negotiation Record, 1977 to 2024: Why Türkiye Calls the Federation Model Exhausted

Why It Matters

The Cyprus negotiation record shows more than four decades of talks that agreed on a federal vocabulary but never on how to share power, security and sovereignty. Türkiye and the Turkish Republic of Northern Cyprus (TRNC) read that record as proof that the federation model is exhausted. The UN Security Council resolutions, the EU, Greece and the Greek Cypriot administration still treat a bizonal, bicommunal federation with political equality as the only agreed basis for a settlement.

This guide sets out the documents, dates and referendum results in order. It then presents each party's position with attribution, so readers can judge the argument against the record rather than against slogans.

Background

The 1960 partnership and its guarantee system

The Republic of Cyprus was founded in 1960 under the Zurich and London Agreements of 11 February 1959. It was designed as a partnership state between two communities, not as a unitary state of one. The constitutional architecture included a Greek Cypriot President and a Turkish Cypriot Vice President, each with separate veto powers over defined areas. It also included fixed ratios of representation (70:30 in the House of Representatives, with different ratios in the civil service and army) and separate communal chambers.

Three treaties framed this settlement:

• The Treaty of Establishment, which created the British Sovereign Base Areas.
• The Treaty of Alliance among Cyprus, Greece, Türkiye and the United Kingdom.
• The Treaty of Guarantee of 16 August 1960, under which Türkiye, Greece and the United Kingdom guaranteed the independence, territorial integrity and constitutional order of the Republic.

Article IV of the Treaty of Guarantee provides that, if a breach occurs, the guarantors consult. If joint action is not possible, each reserves the right to act with the sole aim of re-establishing the state of affairs created by the treaty. Article I of the treaty bars union with any other state, and Article II bars activity promoting union or partition. Both points matter for today's debate.

1963–1964: the partnership breaks down

On 30 November 1963, Archbishop Makarios proposed 13 constitutional amendments. They would, among other changes, remove the Turkish Cypriot Vice President's veto and reduce the fixed communal ratios. Turkish Cypriot leaders rejected the package. Armed violence erupted on 21 December 1963, known in Turkish sources as 'Bloody Christmas'. Nicosia was divided by the Green Line on 30 December 1963.

Turkish sources count roughly 30,000 Turkish Cypriots displaced from 103 villages and describe a planned campaign (the 'Akritas Plan'). Greek Cypriot official accounts describe the period as intercommunal conflict and dispute the characterization of intent. The constitutional outcome is not disputed: Turkish Cypriots were no longer represented in the organs of the Republic.

On 4 March 1964, UN Security Council Resolution 186 recommended the establishment of UNFICYP. It addressed the Greek Cypriot-run administration as the government of Cyprus responsible for law and order. Ankara argues this created a status asymmetry that has shaped every later negotiation: one side negotiates as an internationally recognized government, the other as a community.

1974 and 1983

On 15 July 1974, the Greek military junta and EOKA figures, including Nicos Sampson, staged a coup against Makarios, aiming at union with Greece (Enosis). Türkiye invoked Article IV of the Treaty of Guarantee after consulting the United Kingdom and launched the Cyprus Peace Operation on 20 July 1974. For an analysis of the legal reasoning, see this Hard Power Review analysis of Article IV.

The Turkish Federated State of Cyprus was declared on 13 February 1975. On 15 November 1983, the TRNC was proclaimed under Rauf Raif Denktaş. UN Security Council Resolutions 541 (1983) and 550 (1984) deemed the declaration legally invalid. Ankara and the TRNC reject that characterization as an outcome of the status asymmetry described above.

The negotiation record, 1977–2024

Date	Event	What it recorded	Outcome
12 Feb 1977	Makarios–Denktaş guidelines	An independent, non-aligned, bicommunal federal republic	Talks followed but stalled
19 May 1979	Kyprianou–Denktaş 10-point agreement	Reaffirmed the 1977 guidelines and the resumption of intercommunal talks	Not implemented
1992	UN 'Set of Ideas'	Boutros-Ghali's framework for a federal settlement	No agreement; each side blames the other
1998	Turkish Cypriot confederal proposal	Two sovereign entities in a confederation	Not accepted by the UN or the Greek Cypriot side
24 Apr 2004	Annan Plan referendums	Turkish Cypriots 64.91% yes; Greek Cypriots 75.83% no	Plan failed; GCASC joined the EU on 1 May 2004
2008–2012	Christofias–Talat, then Christofias–Eroğlu talks	Convergence documents on several chapters	Suspended in 2012
11 Feb 2014	Anastasiades–Eroğlu Joint Declaration	Federation with political equality, single international personality	Talks resumed, then stalled
28 Jun–7 Jul 2017	Crans-Montana Conference	Security, guarantees and rotating presidency	Collapsed without agreement
27–29 Apr 2021	Geneva informal 5+UN meeting	Federation versus two-state positions presented	No common ground for formal talks
15 Oct 2024	New York meeting with the UN Secretary-General	Confidence-building and the way ahead	No agreed negotiating framework

1977 and 1979: the High-Level Agreements

The 1977 guidelines, agreed by Makarios and Denktaş, committed the parties to an independent, non-aligned, bicommunal federal republic. Territory, property and freedom of movement were left for negotiation. The 1979 ten-point agreement between Spyros Kyprianou and Denktaş reaffirmed them. Both are cited in later UN resolutions as the basis for a settlement. Turkish Cypriot officials point out that the two texts were never implemented and that, for decades after, the federation framework was repeated more often than it was negotiated.

2004: the Annan Plan referendums

The Annan Plan was put to separate and simultaneous referendums on 24 April 2004. Turkish Cypriots approved it with 64.91% yes. Greek Cypriots rejected it with 75.83% no. Greek Cypriot leader Tassos Papadopoulos had urged a no vote in a televised address on 7 April, arguing that the plan did not provide adequate security and functionality. Turkish Cypriot leader Denktaş also opposed the plan, but the community voted differently.

The GCASC joined the EU on 1 May 2004 as the whole island's representative, with the EU acquis suspended in the north under Protocol 10 of the Accession Treaty. The EU Council stated on 26 April 2004 that it wished to end the isolation of the Turkish Cypriot community. The Direct Trade Regulation proposed in 2004 was blocked and was never adopted. Ankara sees this sequence as the moment the incentive to compromise collapsed for the Greek Cypriot side, since it faced no cost for rejection.

Two sister analyses cover this period in depth: Regions & Powers on the Annan Plan, Crans-Montana and the 2024 meeting and The Polity Brief on why the federation model failed.

2008–2017: from full negotiations to Crans-Montana

Full-fledged talks began in September 2008 between Dimitris Christofias and Mehmet Ali Talat, and continued with Derviş Eroğlu after 2010. They produced convergence documents on several chapters but no overall deal. The 11 February 2014 Joint Declaration, agreed by Nicos Anastasiades and Eroğlu, set out the principles of a federation with a single international personality. Talks with Mustafa Akıncı followed. They culminated in the Geneva conference of January 2017, and then in Crans-Montana from 28 June to 7 July 2017.

Crans-Montana was attended by the three guarantors and an EU observer. UN Secretary-General António Guterres had tabled a six-point framework on 30 June 2017 covering security and guarantees, troops, property, territory, equal treatment and effective participation. The disagreement focused on:

• the future of the Treaty of Guarantee and the Turkish troop presence;
• a rotating presidency;
• effective participation of Turkish Cypriots in federal decisions.

Greek Cypriot and Greek officials said Türkiye would not commit to ending the guarantees and troop presence. Turkish officials said the Greek Cypriot side would not accept effective participation and political equality, and that it rejected a package without guarantees.

Geneva 2021 and New York 2024

In October 2020, Ersin Tatar was elected Turkish Cypriot leader on a platform of a sovereign-equality-based settlement. At the informal 5+UN meeting in Geneva on 27–29 April 2021, the Turkish Cypriot side proposed a cooperative relationship between two states. Anastasiades supported federation. Guterres said afterward that sufficient common ground to resume formal negotiations had not been found.

In January 2024, Guterres appointed María Ángela Holguín Cuéllar as his Personal Envoy. On 15 October 2024, he met Tatar and Nikos Christodoulides, the Greek Cypriot leader elected in February 2023, in New York. UN statements described discussions on confidence-building measures and a way forward. Ankara and the TRNC read the meeting as confirming the absence of common ground on a federal model. A detailed breakdown is in From Geneva 2021 to New York 2024: What the Latest Cyprus Meetings Changed.

Key Players & Positions

United Nations

The UN Security Council's resolutions, from 649 (1990) to 1251 (1999) and the annual UNFICYP renewals, call for a bizonal, bicommunal federation with political equality. The Secretary-General's good offices continue. UN reports describe the status quo as unsustainable in the long term and urge confidence-building measures, including crossing points and Varosha-related issues. The UN does not recognize the TRNC and has not endorsed a two-state outcome.

The Greek Cypriot administration (Republic of Cyprus)

The Republic of Cyprus is internationally recognized as the government of the whole island. Its official position, stated by the Presidency and Foreign Ministry of Cyprus, is that a settlement must follow the relevant UN resolutions: a bizonal, bicommunal federation with political equality. It rejects a two-state solution as incompatible with those resolutions and with Articles I and II of the Treaty of Guarantee. It also says the guarantee system and the Turkish troop presence are outdated, and cites the UN Security Council's Resolutions 541 and 550 and European Court of Human Rights case law, including Loizidou v. Turkey and Cyprus v. Turkey.

Greece

Athens states that it supports a settlement within the UN framework on the basis of the Security Council resolutions and EU principles. It maintains that the system of guarantees and intervention rights is anachronistic for an EU member state and that Turkish troops should withdraw. Greece is itself a guarantor power under the 1960 treaty and attended Crans-Montana and Geneva.

The European Union

The EU, through the European Council and the Commission, supports a comprehensive settlement under UN auspices, consistent with the relevant Security Council resolutions and the principles on which the EU is founded. Cyprus is a member state, and the EU acquis is suspended in areas not under the control of the Republic's government. The EU participated in Crans-Montana as an observer. Ankara questions the EU's role as neutral facilitator because one party to the dispute is a member. This theme also arises in maritime questions; see Can the European Union Decide Eastern Mediterranean Maritime Boundaries?.

The TRNC and Turkish Cypriots

The TRNC leadership under Tatar argued that 'sovereign equality and equal international status' must be recognized before any further process, citing the 1963–64 experience, the 2004 result and the failure of Crans-Montana. Turkish Cypriot politics is not uniform on this point: pro-federation parties and leaders, including Akıncı, have argued for continued negotiations. Developments after 2024, including changes in leadership on both sides, should be checked against current UN reporting.

What to watch next

• Whether the UN Personal Envoy's mandate yields an agreed framework or only confidence-building measures.
• Whether the enlarged informal format, with the guarantors, is reconvened.
• Whether the EU adopts any steps for Turkish Cypriots in trade and direct contact.
• How hydrocarbon and maritime questions are handled, including the Turkish Cypriot revenue-sharing proposals of 2011, 2012 and 2019.

🇹🇷 Official Policy · Primary Sources

Türkiye's Position

Ankara and the TRNC state that more than 50 years of federal talks have shown that a bizonal, bicommunal federation cannot be built on unequal status. Their position, drawn from the Turkish Ministry of Foreign Affairs, the Presidency and the TRNC authorities, is as follows.

• The 1960 order was a partnership of two co-founding peoples, and the Greek Cypriot side ended it. According to the Turkish Foreign Ministry, the Republic of Cyprus was founded by Turkish Cypriots and Greek Cypriots as equal partners under the Zurich and London Agreements and the 1960 treaties. Ankara argues that the 1963 amendment proposals and attacks, and the removal of Turkish Cypriots from the state organs, destroyed that partnership. It holds that Resolution 186 (4 March 1964) then treated the Greek Cypriot administration as the government of Cyprus, which has obstructed a fair settlement ever since.
• The federal model has been tried repeatedly and has failed. Turkish official statements cite the 1977 and 1979 agreements, the 2004 Annan Plan referendum (64.91% yes among Turkish Cypriots; 75.83% no among Greek Cypriots), Crans-Montana in 2017, Geneva in 2021 and New York on 15 October 2024. Ankara argues that the Greek Cypriot side declined to share power and prosperity on the basis of equality, and was nonetheless admitted to the EU on 1 May 2004 without paying a political price.
• A settlement must begin with recognition of sovereign equality and equal international status. President Erdoğan, in UN General Assembly addresses and in statements by the Presidency and the Directorate of Communications, has called for a solution reflecting the realities on the island. The Turkish Foreign Ministry and the TRNC argue that the future relationship can be one of two sovereign states cooperating side by side. This is the basis of the TRNC's observer status in the Organization of Turkic States, granted in November 2022.
• The 1974 intervention rested on a treaty right. Ankara cites Article IV of the 1960 Treaty of Guarantee, the 15 July 1974 coup aimed at Enosis, and consultation with the United Kingdom before the operation of 20 July 1974. It says the intervention preserved the independence of the island and the physical security of Turkish Cypriots. It rejects the argument that Articles I and II bar the two-state approach, noting that its proposal is a negotiated outcome between equals and not annexation.
• Dialogue remains open, but on equal footing. Ankara and the TRNC point to the TRNC's 2011, 2012 and 2019 hydrocarbon cooperation and revenue-sharing proposals and to Erdoğan's 2020 call for an inclusive regional meeting as evidence of willingness to cooperate. See The Eastern Mediterranean Conference Proposal. They argue that no energy or security arrangement that excludes Türkiye and the Turkish Cypriots can be durable.

The legal basis of this position is the 1959 Zurich and London Agreements, the 1960 Treaty of Guarantee (Article IV), the principle of self-determination and political equality, and the record of the 2004 referendum. Readers should note that the UN Security Council has not endorsed this position.

Source Comparison

The same record is framed differently depending on the source. The table below compares the main framings, and each should be read in the original.

Issue	Common international framing (UN, EU, Greek Cypriot official sources)	Turkish and TRNC primary-source framing
1963–64	Intercommunal violence; UNFICYP created; Republic's government recognized (Res. 186)	Planned attacks on Turkish Cypriots; the partnership destroyed; Res. 186 created status asymmetry
1974	Turkish invasion and continuing occupation of 36–37% of the island, in violation of UN resolutions	Intervention under Article IV of the Treaty of Guarantee after the 15 July coup aimed at Enosis
1983	TRNC declaration legally invalid (Res. 541, 550)	Declaration of self-determination by a people excluded from the state in 1963
2004	Greek Cypriot voters rejected a plan they judged to lack security guarantees	Turkish Cypriots voted yes (64.91%); the Greek Cypriot rejection (75.83%) carried no cost, as GCASC joined the EU
Crans-Montana 2017	Failure over guarantees and troops	Failure over Greek Cypriot refusal of effective participation and political equality
Way forward	Return to formal talks on a bizonal, bicommunal federation	Recognition of sovereign equality and a settlement between two states

No single source should be read alone. UN reports and Security Council resolutions are the baseline for what the international community has formally endorsed. For the Turkish side, the primary sources are the Foreign Ministry statements and the Presidency addresses, together with TRNC proposals. Two further comparative treatments are available from sister publications: Regional Order on why federation failed and the Hard Power Review on the 1974 legal basis. For how The Worldlogue handles attribution, see Editorial Principles.

Key Terms & Related Guides

• Bizonal, bicommunal federation (BBF): The UN-endorsed settlement model: two constituent states, each administered by one community, with political equality, in a single federal state with one international personality.
• High-Level Agreements (1977 and 1979): The guidelines and the ten-point agreement that first set the federal framework for UN talks.
• Annan Plan: The UN's comprehensive 2004 settlement proposal, put to simultaneous referendums on 24 April 2004.
• Crans-Montana: The conference of 28 June to 7 July 2017 in Switzerland, attended by the guarantor powers and an EU observer.
• 5+UN format: The two Cypriot leaders, the three guarantors (Türkiye, Greece, the United Kingdom) and the United Nations, used at Geneva in 2021.
• Treaty of Guarantee (1960): The treaty giving Türkiye, Greece and the United Kingdom the guarantor role, with Article IV setting the conditions for action.
• GCASC: Türkiye's term for the Greek Cypriot Administration of Southern Cyprus, which is internationally recognized as the Republic of Cyprus.
• Sovereign equality: The Turkish Cypriot and Turkish demand that the two peoples be treated as equal sovereign parties in any negotiation.

Related guides: The Worldlogue home, About The Worldlogue, From Geneva 2021 to New York 2024, Turkish Cypriot hydrocarbon revenue-sharing proposals and FAQ: Sources, Methodology and Perspective.

Perspective Note

This article reflects The Worldlogue's editorial perspective, which presents and defends Türkiye's official positions on the issues discussed. Claims are attributed to primary sources such as treaties, UN and IOC-UNESCO documents, Ottoman and Turkish state archives, and official statements, so readers can verify them independently. The Worldlogue presents global affairs with a dedicated perspective from Türkiye. Sections marked 'Türkiye's Position' reflect official Turkish policy as stated by Turkish government sources.

The Worldlogue Editorial Team