The declaration of Independence of the Turkish Republic of Northern Cyprus was a unilateral declaration of independence (UDI) from the Republic of Cyprus by the Turkish Cypriot parliament on 15 November 1983.

Eight years after the Turkish Federated State of Cyprus was proclaimed (in 1975), the declaration of North Cyprus was presented to the Turkish Cypriot parliament in North Nicosia by Turkish Cypriot Leader and Northern Cypriot State President Rauf Denktaş on 15 November 1983. Containing text espousing human rights and a desire to live side-by-side with the Greek Cypriot population, it ended with a declaration that Northern Cyprus was an independent and sovereign state, naming the entity the Turkish Republic of Northern Cyprus (TRNC). The Turkish Cypriot Parliament passed a unanimous resolution later that day ratifying the declaration.

Background
Prior to 1960 the island of Cyprus was a British colony, having been taken from the Ottoman Empire during the First World War. The London and Zurich Agreements of 1959 provided for a constitution for an independent Cyprus which divided the population into ethnic-based communities, in which the President would be elected by Greek Cypriots and the Vice President elected by Turkish Cypriots. There would also be a national legislature called the House of Representatives to which the Greek and Turkish Cypriots would elect their own representatives, and a 10-member Council of Ministers of which 3 members would be Turkish Cypriots.

The Treaty of Guarantee, signed in 1960 by Cyprus, Greece, Turkey and the United Kingdom, banned Cyprus from entering into any political or economic union with another state. It also required the other signatories to guarantee Cypriot independence and territorial integrity, and to this end allowed the guarantor powers to take unilateral action to uphold the status quo in Cyprus. The treaty also allowed the United Kingdom to retain sovereignty over its military bases on the island.

By 1963 the constitutional framework began to fall apart when the legislature split along communal lines and became deadlocked. Greek-Cypriot President Makarios III proposed constitutional amendments to end the deadlock, which were strongly opposed by the Turkish-Cypriot leadership and the government of Turkey. The Turkish-Cypriot members consequently withdrew from the Council of Ministers, the House of Representatives and the civil service. President Makarios refused any solutions that would result in the partition of Cyprus.

In July 1974 a coup d'etat backed by the military dictatorship in Greece overthrew President Makarios and installed Nikos Sampson as president, declaring their intention to form a political union with Greece. Turkey, claiming to be exercising its right to unilateral intervention under the Treaty of Guarantee, then invaded the island in two stages beginning on 20 July 1974. By August 1974 the northern part of the island - including the northern half of the capital, Nicosia - were under Turkish occupation. The United Nations Buffer Zone in Cyprus was established along the ceasefire line.

The Temporary Turkish Cypriot Administration was created on 1 October 1974, and on 13 February 1975 the Turkish Federated State of Cyprus was declared. It was intended for this declaration to be the first step towards a federated Turkish Cypriot state, and that the Greek Cypriots would eventually declare their own federated state within a newly unified Cyprus. The declaration however was rejected by the Republic of Cyprus and the United Nations, although it was not regarded as a declaration of independence. The goal of a federated Turkish Cypriot state was abandoned after eight years of failed negotiations, resulting in the 1983 declaration of independence.

The declaration

Reactions
The United Nations Security Council issued two resolutions (541 and 550) proclaiming that the Turkish Cypriot UDI was legally invalid and requesting that no other sovereign state should recognise the declaration and asked for its withdrawal.

Recognition

UN member states
Turkey formally recognized Northern Cyprus on the day its UDI was declared, and is currently the only UN member state to recognise the independence of Northern Cyprus.

Pakistan and Bangladesh previously recognized Northern Cyprus, but withdrew their recognition after the declaration was condemned by the United Nations.

Sub-national entities
The parliament of the Nakhichevan Autonomous Republic, which is a self-governing exclave of Azerbaijan, has issued a resolution recognising the TRNC as a sovereign nation.

Decision of the ICJ on declarations of independence
On 22 July 2010, the United Nations' International Court of Justice (ICJ) issued a non-legally-binding decision (in relation to Kosovo) that "International law contains no prohibition on declarations of independence"; see Political status of Kosovo. The ruling was expected to bolster demands for recognition by Northern Cyprus. The decision of the ICJ has also been regarded as opening more potential options for the TRNC to gain international legitimacy.

Relevant Court Cases
International law contains no prohibition on declarations of independence, and the recognition of a country is a political issue. 

 On 2 July 2013, The European Court of Human Rights (ECtHR) decided that "...notwithstanding the lack of international recognition of the regime in the northern area, a de facto recognition of its acts may be rendered necessary for practical purposes. Thus the adoption by the authorities of the "TRNC" of civil, administrative or criminal law measures, and their application or enforcement within that territory, may be regarded as having a legal basis in domestic law for the purposes of the Convention". 

 On 9 October 2014, the Federal Court of the United States (USA) stated that "the TRNC purportedly operates as a democratic republic with a president, prime minister, legislature and judiciary". 

 On 2 September 2015, ECtHR decided that "...the court system set up in the "TRNC" was to be considered to have been "established by law" with reference to the "constitutional and legal basis" on which it operated, and it has not accepted the allegation that the "TRNC" courts as a whole lacked independence and/or impartiality". 

 On 3 February 2017, The United Kingdom's High Court stated "There was no duty in the United Kingdom law upon the Government to refrain from recognizing Northern Cyprus. The United Nations itself works with Northern Cyprus law enforcement agencies and facilitates co-operation between the two parts of the island". and revealed that the co-operation between the United Kingdom police and law agencies in Northern Cyprus is legal.

See also
 Federated state
 Annan Plan

References

1983 in Cyprus
1983 in Northern Cyprus
November 1983 events in Europe
1983 documents
Turkish Republic of Northern Cyprus
Politics of Northern Cyprus
Secession in Cyprus
Cyprus dispute
Law of Northern Cyprus
Turkish nationalism in Cyprus