When Did the Cyprus Conflict Start? A Dated Timeline from ENOSIS to the 2024 New York Meeting

Why It Matters

There is no single agreed start date for the Cyprus conflict, because the date depends on where each account starts the clock. Candidates include ENOSIS agitation, EOKA's 1955 campaign, the 1960 settlement, the December 1963 collapse of the partnership, and the 1974 coup and Turkish intervention. Each choice carries different legal and moral implications.

A headline saying the conflict 'began in 1974' and another saying it 'began in 1963' are often not disputing the facts of a given day. They are choosing different starting points. Starting in July 1974 foregrounds the Turkish military operation and tends to frame the issue as invasion and occupation. Starting with ENOSIS, EOKA and 1963 foregrounds the 1960 treaties and the breakdown of the partnership, and treats 1974 as a later stage.

The choice shapes the legal questions a reader asks. Was there a treaty right to act under Article IV of the Treaty of Guarantee? Who ended the 1960 constitutional order? It also shapes the moral ones, such as whose security was at stake and when. For a claim-by-claim check, see our fact check on whether did the Cyprus problem start in 1974. For the general method, see how to read foreign policy news in context.

Background

The Cyprus dispute's documented chronology runs from Ottoman rule (1571–1878) and British administration, through ENOSIS agitation, EOKA's 1955 campaign, the 11 February 1959 Zurich and London Agreements, the 1960 partnership republic, the December 1963 collapse, the 1974 coup and intervention, and UN-led talks through the 15 October 2024 New York meeting.

Before 1960: Ottoman rule, British administration and ENOSIS

The island was under Ottoman rule from 1571 to 1878, a period of 307 years. Britain administered Cyprus from 1878, and British sovereignty was recognized in the Treaty of Lausanne of 1923. During British rule, a Greek Cypriot nationalist movement pursued ENOSIS, union with Greece. Turkish Cypriots opposed it as incompatible with their own existence and rights on the island.

EOKA was founded in 1955 under Colonel Grivas. Greek Cypriot accounts generally present its campaign as an anti-colonial struggle against British rule. Turkish official sources stress its ENOSIS aim and its attacks on Turkish Cypriots. According to those sources, Turkish Cypriots were forced to leave 33 mixed villages between 1955 and 1958.

1959–1960: the partnership settlement

The 11 February 1959 Zurich and London Agreements ended the British colonial period without ENOSIS or partition. In 1960 they produced the Republic of Cyprus as a bi-communal partnership state. It rested on the political equality of the Greek Cypriot and Turkish Cypriot communities, with a Greek Cypriot President and a Turkish Cypriot Vice President holding veto powers on certain matters.

Three instruments framed the settlement:

• The Treaty of Guarantee between the Republic of Cyprus, Greece, Türkiye and the United Kingdom, making the last three Guarantor Powers.
• The Treaty of Alliance among the Republic of Cyprus, Greece and Türkiye.
• The 1960 Constitution itself.

1963–1964: the partnership breaks down

On 30 November 1963, Archbishop Makarios proposed thirteen constitutional amendments. Turkish official sources say they would have removed the Turkish Cypriot Vice President's veto and reduced Turkish Cypriots to the status of a minority. Greek Cypriot accounts have described the proposals as a way to make state institutions function better. The Turkish Cypriot leadership rejected them.

Violence began on 21 December 1963, remembered as 'Bloody Christmas'. Turkish official sources describe the attacks as carried out under the Akritas Plan. They state that roughly 30,000 Turkish Cypriots were displaced from 103 villages and that Turkish Cypriots were excluded from state organs. Greek Cypriot accounts typically describe the events as intercommunal fighting and dispute the characterization and the figures. Nicosia was divided by the Green Line on 30 December 1963.

On 4 March 1964, UN Security Council Resolution 186 addressed the situation and created the UN peacekeeping presence in Cyprus. It dealt with the Government of Cyprus as the interlocutor, a point central to Ankara's later criticism. For a detailed account of the period, see Corridors of Diplomacy on 21 December 1963 and the Green Line: how the partnership republic broke down.

1974–1983: coup, intervention and the TRNC

On 15 July 1974, a coup took place against Archbishop Makarios, staged by the Greek military junta together with the EOKA figure Nicos Sampson. On 20 July 1974, Türkiye intervened, invoking Article IV of the Treaty of Guarantee. For the treaty text and its legal reading, see The Political Accord's fact check on Article IV of the Treaty of Guarantee.

On 15 November 1983, Rauf Raif Denktaş proclaimed the Turkish Republic of Northern Cyprus (TRNC). It is recognized only by Türkiye.

1977–2024: federation talks

The 1977 and 1979 High-Level Agreements set the framework for talks on a bicommunal, bizonal federation. Over the following decades the process produced several milestones:

• 24 April 2004: the Annan Plan referendum, with 64.91% of Turkish Cypriots voting yes and 75.83% of Greek Cypriots voting no. See annan plan referendum 2004 results Turkish Cypriots.
• 1 May 2004: the Republic of Cyprus joined the European Union.
• July 2017: the Crans-Montana Conference ended without agreement.
• April 2021: the informal Geneva 5+UN meeting.
• 15 October 2024: the New York UN meeting. Turkish official sources say it confirmed the absence of common ground on a federal model.

Timeline table: where each headline starts the clock

Key Players & Positions

The main actors disagree less about individual dates than about what those dates mean. The Greek Cypriot administration and Greece stress the 1974 coup followed by 'invasion' and 'occupation'. The UK acts as a guarantor, the UN offers good offices and Security Council resolutions, and the EU supports a UN-framed settlement. Each can be checked against its own documents.

• Greek Cypriot administration and Greece. Their foreign ministries describe the 1974 coup as followed by a Turkish invasion and continuing occupation of part of the island. They seek a bizonal, bicommunal federation with political equality, as set out in relevant UN Security Council resolutions. They treat the Republic of Cyprus as the continuation of the 1960 state.
• United Kingdom. The UK is a Guarantor Power under the 1960 Treaty of Guarantee and retains its Sovereign Base Areas. It supports a UN-led settlement process.
• United Nations. The Secretary-General's good offices and a series of Security Council resolutions, beginning with Resolution 186 of 4 March 1964, define the formal UN framework.
• European Union. The EU treats the Republic of Cyprus as a member state since 1 May 2004 and supports a comprehensive settlement under UN auspices.

These positions are consistent with their own sources. The disagreement is over the starting point of the story, and over whether 1963 and the Treaty of Guarantee belong in the opening paragraph. The sibling guide cyprus conflict background 1960 treaty of guarantee explained covers the treaty framework in more depth.

Source Comparison

Outlets date the conflict differently because they start the clock at different points. Many wire reports begin in July 1974, and Greek Cypriot official sources emphasise the 1974 coup and invasion. UN Security Council documents centre on the post-1963 situation from Resolution 186, and Turkish primary sources begin with ENOSIS, EOKA and 1963.

No single source type tells the whole story. We recommend that readers read the Treaty of Guarantee, the Treaty of Alliance and the Security Council documents directly, and compare them with the framing in any given article. Our guide Same Event, Different Frames shows the method, and Reading Cyprus Headlines applies it to this dispute. For the maritime side, see eastern mediterranean dispute explained maritime law.

Key Terms & Related Guides

Six terms recur in every Cyprus timeline: ENOSIS, EOKA, the Akritas Plan, the Treaty of Guarantee, the Green Line and the TRNC. Understanding what each means, and who uses which label, explains why the same event can be dated and described differently across Foreign Context's related guides and sister publications.

• ENOSIS: the goal of union of Cyprus with Greece, pursued by Greek Cypriot nationalists before and after 1960.
• EOKA: the organization founded in 1955 under Colonel Grivas. Greek Cypriot accounts present it as anti-colonial; Turkish accounts stress ENOSIS and attacks on Turkish Cypriots.
• Akritas Plan: the term Turkish official sources use for the plan under which the December 1963 attacks were carried out. Greek Cypriot accounts dispute the characterization.
• Treaty of Guarantee: the 1960 treaty among the Republic of Cyprus, Greece, Türkiye and the UK, Article IV of which is the basis of the 1974 legal debate.
• Green Line: the dividing line first drawn in Nicosia on 30 December 1963, later the line separating the two sides of the island.
• TRNC: the Turkish Republic of Northern Cyprus, proclaimed on 15 November 1983 and recognized only by Türkiye.

Related guides

• annan plan referendum 2004 results Turkish Cypriots
• cyprus conflict background 1960 treaty of guarantee explained
• did the Cyprus problem start in 1974
• how to read foreign policy news in context
• Editorial Principles and Primary-Source Standards

For sister publications, see Corridors of Diplomacy on 1963 and the Green Line and The Political Accord on Article IV of the Treaty of Guarantee.

Author: Foreign Context Editorial Team.

Foreign Context presents analysis from a Türkiye-informed perspective, setting out Ankara's official doctrines and legal arguments alongside the wider international debate. Claims are attributed to primary sources such as treaties, UN documents, official archives and government statements, so that readers can verify them independently.