The European Union (EU) has expanded a number of times throughout its history by way of the accession of new member states to the Union. To join the EU, a state needs to fulfil economic and political conditions called the Copenhagen criteria, which require a stable democratic government that respects the rule of law, and its corresponding freedoms and institutions. According to the Maastricht Treaty, each current member state and the European Parliament must agree to any enlargement. The process of enlargement is sometimes referred to as European integration. This term is also used to refer to the intensification of co-operation between EU member states as national governments allow for the gradual harmonisation of national laws.
A referendum on the Annan Plan was held in the Republic of Cyprus and the Turkish Republic of Northern Cyprus on 24 April 2004. The two communities were asked whether they approved of the fifth revision of the United Nations proposal for reuniting the island, which had been divided since 1974. While it was approved by 65% of Turkish Cypriots, it was rejected by 76% of Greek Cypriots. Turnout for the referendum was high at 89% among Greek Cypriots and 87% among Turkish Cypriots, which was taken as indicative of great interest in the issue on the part of the electorates.
The Treaty of Accession 2003 was the agreement between the member states of the European Union and ten countries, concerning these countries' accession into the EU. At the same time it changed a number of points which were originally laid down in the Treaty of Nice. The treaty was signed on 16 April 2003 in Athens, Greece and it entered into force on 1 May 2004, resulting in enlargement of the European Union with 10 states.
Turkey is negotiating its accession to the European Union (EU) as a member state, following its application to become a full member of the European Economic Community (EEC), the predecessor of the EU, on 14 April 1987.
The most recent enlargement of the European Union saw Croatia become the European Union's 28th member state on 1 July 2013. The country applied for EU membership in 2003, and the European Commission recommended making it an official candidate in early 2004. Candidate country status was granted to Croatia by the European Council in mid-2004. The entry negotiations, while originally set for March 2005, began in October that year together with the screening process.
Albania is on the current agenda for future enlargement of the European Union (EU). It applied for EU membership on 28 April 2009, and has since June 2014 been an official candidate for accession. The Council of the European Union decided in March 2020 to open accession negotiations with Albania.
Between 1973 and 1993 the European Communities saw the first enlargement of the Communities. On 1 January 1973, Denmark, Ireland, and the United Kingdom became the first countries to join the Communities. The détente allowed initiation of the reunification of the continent through establishing the Conference on Security and Co-operation in Europe. Greece was the next to join EC on 1 January 1981, followed by Spain and Portugal joining on 1 January 1986, while Turkey has initiated the procedure in 1987. Upon the fall of the Iron Curtain, the CSCE was transformed in 1990 into Organization for Security and Co-operation in Europe, the Communities enlarged for a fourth time through the German reunification, while other former communist European countries stated their firm commitment to join, prompting formulation of the Copenhagen criteria. This period was, however, also the one which witnessed the first voluntary exit from the Communities, namely the one of Greenland in 1985. The integration progressed under the Delors Commission resulting in the creation of the European Union in 1993.
The procedures for voting in the Council of the European Union are described in the treaties of the European Union. The Council of the European Union has had its voting procedure amended by subsequent treaties and currently operates on the system set forth in the Treaty of Lisbon. The system is known as qualified majority voting is a type of consociational democracy.
Events in the year 1994 in the European Union.
There are currently nine states recognized as candidates for membership of the European Union: Albania, Bosnia and Herzegovina, Georgia, Moldova, Montenegro, North Macedonia, Serbia, Turkey, and Ukraine. Kosovo formally submitted its application for membership in 2022 and is considered a potential candidate by the European Union. Due to multiple factors, talks with Turkey are at an effective standstill since December 2016.
The accession of North Macedonia to the European Union has been on the current agenda for future enlargement of the EU since 2005, when it became an official candidate for accession. The then Republic of Macedonia submitted its membership application in 2004, thirteen years after its independence from Yugoslavia. It is one of nine current EU candidate countries, together with Albania, Bosnia and Herzegovina, Georgia, Moldova, Montenegro, Serbia, Turkey and Ukraine.
The largest enlargement of the European Union (EU), in terms of number of states and population, took place on 1 May 2004.
On 1 January 2007, Bulgaria and Romania became member states of the European Union (EU) in the fifth wave of EU enlargement.
The 1995 enlargement of the European Union saw Austria, Finland, and Sweden accede to the European Union (EU). This was the EU's fourth enlargement and came into effect on 1 January of that year. It is also known as the EFTA Enlargement round. All these states were previous members of the European Free Trade Association (EFTA) and had traditionally been less interested in joining the EU than other European countries. Norway had negotiated to join alongside the other three, but following the signing of the treaty, membership was turned down by the Norwegian electorate in the 1994 national referendum. Switzerland also applied for membership on 26 May 1992, but withdrew it after a negative referendum result on 6 December 1992.
On 28 February 2022, four days after it was invaded by Russia, Ukraine applied for membership of the European Union (EU). Ukrainian President Volodymyr Zelenskyy requested immediate admission under a "new special procedure", and the presidents of eight EU states called for an accelerated accession process. European Commission president Ursula von der Leyen stated that she supports Ukrainian accession, but that the process would take time. On 10 March 2022, the Council of the European Union asked the commission for its opinion on the application. On 8 April 2022, von der Leyen presented Zelenskyy with a legislative questionnaire, which Ukraine responded to on 9 May.
The Treaty of Accession 1985 was the agreement between the member states of the European Communities, Spain and Portugal, concerning these countries' accession into the EC. It entered into force on 1 January 1986. The Treaty arranged accession of Spain and Portugal to the EC and amended earlier treaties of the European Communities. As such it is an integral part of the constitutional basis of the European Union.
The Treaty of Accession 1979 was the agreement between the European Communities and Greece, concerning this country's accession into the EC. It entered into force on 1 January 1981. The Treaty arranged accession of Greece to the EC and amended earlier treaties of the European Communities. As such it is an integral part of the constitutional basis of the European Union.
The Treaty of Accession 1972 was the international agreement which provided for the accession of Denmark, Ireland, Norway and the United Kingdom to the European Communities. Norway did not ratify the treaty after it was rejected in a referendum held in September 1972. The treaty was ratified by Denmark, Ireland and the United Kingdom who became EC member states on 1 January 1973 when the treaty entered into force. The treaty remains an integral part of the constitutional basis of the European Union.
Spain and Portugal acceded to the European Communities, now the European Union, in 1986. This was the third enlargement of the Communities, following on from the 1973 and 1981 enlargements. Their accessions are considered to be a part of the broader Mediterranean enlargement of the European Union.
The Berlin Process is an intergovernmental cooperation initiative linked to the future enlargement of the European Union.
