European Union 🇪🇺

In the aftermath of the First World War, Keynes advanced the idea of a customs union to relieve struggling European economies. It marked one of the first concrete advances of the European integration idea in the interwar period.

The Paneuropean Union was established as the first enduring body dedicated to European unity. Coudenhove-Kalergi later founded the European Parliamentary Union in June 1947, sustaining the federalist current into the post-war period.

Speaking in Geneva on 5 September 1929, the French Prime Minister argued for a federal Europe to secure the continent and settle the historic Franco-German enmity. The speech became a widely cited antecedent of post-war integration.

Gathered in London, exiled European governments and resistance representatives set out common war aims. It was the first wartime agreement pointing towards joint post-war European institutions.

The Charter established the Allies and their shared objectives, expanding on the Declaration of St James's Palace. It incited a new wave of global institutions including the United Nations in 1945 and the Bretton Woods system in 1944.

The Moscow and Tehran Conferences of 1943 increasingly discussed institutions for a post-war world and Europe. This planning fed directly into subsequent Allied decisions on European governance.

The Yalta Conference agreed to create a European Advisory Commission to prepare post-war arrangements. It was later replaced by the Council of Foreign Ministers and the Allied Control Council after the German surrender and the Potsdam Agreement of 1945.

One month after Churchill's Zürich speech, France created the French Union to steer its colonies so that they might become parts of a European community. It linked French decolonisation to the emerging integration project.

On 19 September 1946 Churchill reiterated at the University of Zürich calls he had made since 1930 for European unity. The speech coincided with the Hertenstein Congress of the Union of European Federalists and helped galvanise the European Movement.

Days after the Treaty of Dunkirk, Washington committed to supporting democracies against Soviet pressure. The doctrine underpinned American backing for West European institutions and the later creation of NATO in 1949.

The treaty guaranteed mutual assistance against future military aggression, officially naming Germany but in reality aimed at the Soviet Union. It was an early building block of the West European security architecture that preceded the Western Union.

Following the February 1948 Communist coup in Czechoslovakia, the London Six-Power Conference prompted the Soviet boycott and incapacitation of the Allied Control Council. The rupture divided Europe and accelerated western institutional integration.

The Organisation for European Economic Co-operation, predecessor of the OECD, was set up to manage American Marshall Plan aid. The Soviet Union responded by creating Comecon, deepening the economic division of Europe.

The Treaty of Brussels created the Western Union, the first institutionalised body of modern European integration, followed by the International Authority for the Ruhr. The year 1948 is treated as the start of the process that led to the European Union.

The Congress led to the creation of the European Movement International and the College of Europe. Most importantly, it produced the foundation of the Council of Europe the following year.

The Council of Europe became a broad forum for cooperation on shared issues, and 5 May is now marked as Europe Day. Its early achievements included the European Convention on Human Rights in 1950.

The Convention created a binding European rights framework across the continent. It established human rights as a defining component of the European integration project.

The declaration, made the day after the fifth Victory in Europe Day, proposed pooling Franco-German coal and steel production. Six nations agreed to follow it and draft the Treaty of Paris, making it the essential act in the birth of the EU's institutions.

After two devastating World Wars, European leaders in the late 1940s concluded that lasting peace required reconciling France and Germany economically and politically. The European Coal and Steel Community was established when Belgium, France, West Germany, Italy, Luxembourg and the Netherlands signed the Treaty of Paris in 1951, integrating the coal and steel industries of Western Europe. The ECSC built on the International Authority for the Ruhr, installed by the Western Allies in 1949 to regulate Ruhr coal and steel, and, backed by Marshall Plan funds, it became the origin of the main EU institutions, including the Commission, Parliament and the Court established in Luxembourg in 1952.

The plan sought to bind the developing European community under a European Political Community including a European Defence Community, as an alternative to West Germany joining NATO. Its failure left defence integration outside the Community framework for decades.

The Modified Brussels Treaty of 1954 recast the Western Union as the WEU. The organisation provided a European mutual defence framework until its closure in 2011.

West German accession to both organisations completed its integration into the western security system. The Soviet Union responded in the same year by forming the Warsaw Pact to institutionalise its military domination of Central and Eastern Europe.

Meeting to assess progress on integration, the Six ordered the Spaak Report, delivered in 1956. Its recommendations set out the next significant steps that led directly to the Treaty of Rome.

Envisioning an ever closer union, the 1957 Treaties of Rome, signed by Belgium, France, Italy, Luxembourg, the Netherlands and West Germany, created the European Economic Community with a customs union and the European Atomic Energy Community (Euratom) for nuclear cooperation, and the six member states undertook to eliminate trade barriers among themselves by forming a common market. Both treaties entered into force in 1958, sharing courts and the Common Assembly with the ECSC, and foreign policy cooperation between member states dates from this founding.

Not explicitly set out in the treaties, these doctrines were built by the Court through its case law during the 1960s, apparently under the influence of judge Robert Lecourt. They made Community law directly enforceable and superior to national law, transforming the legal character of integration.

The organisation was recast as the OECD and its membership extended beyond Europe to the United States and Canada. This separated wider western economic coordination from the deepening Community project.

The CAP became the dominant Community spending programme, consuming 73 per cent of the budget by 1985. Successive reforms cut its share to 37 per cent by 2017 and added rural development to its aims.

After 1960s tensions over supranational power, an agreement in 1965 led to the Merger Treaty taking effect on 1 July 1967, formally merging the institutions of the ECSC, EEC and Euratom and creating a single Commission, a single Council of Ministers and the body known today as the European Parliament. The three communities were thereafter collectively known as the European Communities, with Jean Rey presiding over the first merged commission.

The Community formally adopted monetary union as a goal. This began the long process culminating in the Maastricht convergence criteria and the euro.

EPC created an informal consultation process aimed at forming common foreign policies. It was placed on a formal basis by the Single European Act in 1987 and became the ancestor of the EU's common foreign and security policy.

Ostpolitik and the ensuing détente led to the CSCE, the first truly pan-European body. It later became the Organization for Security and Co-operation in Europe.

The first enlargement of the European Communities took place in 1973 with the addition of Denmark, including Greenland, Ireland and the United Kingdom. Norway had negotiated accession simultaneously but its voters rejected membership in a referendum.

The Court was created to improve Community financial management. It now has 27 members, one from each member state, supported by around 800 civil servants.

Members of the European Parliament were initially selected by national parliaments, but in 1979 the first direct elections were undertaken and they have been held every five years since.

The 1980s saw further expansion of the European Community, with Greece joining in 1981 and Spain and Portugal in 1986.

The Framework Programmes became the principal instrument for facilitating scientific development across the Community. They institutionalised European-level research funding.

The autonomous Danish province withdrew following a dispute over fishing rights, becoming the first territory to leave. It demonstrated that withdrawal from the Communities was practically possible.

The agreement, supplemented by the 1990 Schengen Convention, paved the way for open borders without passport controls between most member states and some non-members. Free movement of persons became one of the Union's most visible achievements.

Community leaders adopted the anthem in 1985 and set Europe Day on 9 May, the date of the 1950 Schuman declaration; the flag, originally designed in 1955 for the Council of Europe, was adopted in 1986. These symbols gave the integration project a common public identity.

The Act relaunched integration towards a single market and formalised European Political Cooperation in 1987. Its 1987 entry also established the legal basis for EU environmental policy, now comprising over 500 directives, regulations and decisions.

Iberian accession followed the two countries' democratic transitions and enlarged the Community to twelve. It significantly expanded the Community's southern and Atlantic reach.

Erasmus became the most visible of the higher education mobility programmes developed during the 1980s. It created a mass experience of cross-border study among European students.

Preparing for a new great enlargement became a political priority, with ten countries aspiring or negotiating to join. Institutional and budgetary reforms are being discussed to ready the Union for new members.

A leak indicated Washington would attempt to persuade Austria, Hungary, Italy and Poland to leave the Union in a Brexit-type manner. It signalled external pressure on EU cohesion from a long-standing ally.

The programme aims to mobilise local industrial capabilities and boost European equipment production and procurement. It represents a strategic push towards military readiness and defence self-sufficiency.

Formally signed in May 2024, the agreement established a comparatively constrained ethics body rather than the strong independent watchdog with investigative powers the Parliament had proposed in 2021. It notably rests outside the Article 295 TFEU legal basis for interinstitutional agreements.

The directive aims to lift minimum wages and strengthen collective bargaining across member states. A European Care strategy for affordable care services was approved in the same month.

The €300 billion plan set out a path to ending EU reliance on Russian fossil fuels by 2030 and accelerating the clean energy transition. Russia, Norway and Algeria had supplied about three quarters of EU gas imports in 2019.

After Russia's full-scale invasion of Ukraine on 24 February 2022, the EU adopted heavy sanctions and agreed a pooled military aid package funded through the off-budget European Peace Facility. It was an unprecedented step for a Union previously without a lethal-aid instrument.

The scandal served as a critical juncture accelerating pressure for systemic ethics reform across the institutions. Public perception of institutional transparency and independence from private interests remained poor.

The Compass reaffirmed partnership with NATO and committed to increased military mobility. It provided for a 5,000-strong EU Rapid Deployment Capacity, going beyond the earlier Battlegroups of about 1,500 personnel each.

The law set targets of a 55 per cent reduction in greenhouse-gas emissions by 2030 and carbon neutrality by 2050. In the same year the EU and the United States pledged to cut methane emissions by 30 per cent by 2030.

The two members held up the budget in the Committee of Permanent Representatives, objecting to a proposal linking funding to adherence to the rule of law. The budget included the €750 billion COVID-19 recovery fund.

The UK withdrew on 31 January 2020, though most EU law continued to apply during a transition period until 31 December 2020. It reduced the Union to 27 member states.

Agreed in principle by the European Council on 21 July 2020 and adopted on 14 December 2020, the €750 billion recovery instrument responded to the COVID-19 economic crisis. Operating from 2021 to 2026 alongside the 2021–2027 Multiannual Financial Framework, the combined packages are projected to reach €1,824.3 billion.

Proposed by the European Council in light of the European elections and elected by the Parliament, she served the 2019–2024 term and was re-elected for 2024–2029. The appointment followed the pattern of linking the presidency to election results.

Signed on 17 July 2018 and in force from 1 February 2019, it became the world's largest bilateral free trade deal. The open trade zone covers nearly one third of global GDP.

On 29 March 2017 the UK notified the European Council of its decision to leave, starting the formal withdrawal procedure. Extensions followed before departure was completed.

Created through the European Space Agency and operated by EUSPA, Galileo gave the EU an independent global navigation capability. Its ground operations centres are at Fucino in Italy and Oberpfaffenhofen in Germany.

The referendum on EU membership produced a narrow majority for withdrawal. It came amid a decade in which EU cohesion was tested by the euro area crisis and the 2015 migrant crisis.

Croatian accession was the Union's most recent enlargement. The country adopted the euro a decade later in 2023.

The prize recognised the Union's contribution to the advancement of peace and reconciliation, democracy and human rights in Europe. It was a symbolic high point of the EU's international standing.

The military alliance with a mutual defence clause was wound up as the EU assumed its functions. It consolidated European defence cooperation within the Union framework.

The EEAS became officially operational on 1 December 2010, the first anniversary of the Lisbon Treaty's entry into force. It gave the Union a unified diplomatic service.

Invoking again the idea of an ever closer union, the Lisbon Treaty came into force on 1 December 2009, and the European Union officially replaced and succeeded the European Community. The treaty merged the three-pillar system into a single legal entity with explicit international legal personality, created a permanent president of the European Council, first held by Herman Van Rompuy, and strengthened the high representative. It also gave legal effect to the Charter of Fundamental Rights and made fisheries conservation an exclusive EU competence.

A 2007 effort incorporated many features of the rejected Constitution while making substantive and symbolic changes. Initially known as the Reform Treaty, the Treaty of Lisbon sought to amend existing treaties rather than replace them and was approved at the intergovernmental conference of the 27 member states held in Lisbon in December 2007, after which national ratifications began.

Agreed on 22 May 2007 between the EU and ESA, the policy created the joint European Space Council. It laid the basis for the European Union Space Programme, later managed by EUSPA from 2021.

Members committed that 20 per cent of energy used across the EU must be renewable and that carbon dioxide emissions be at least 20 per cent below 1990 levels by 2020. It was the EU's first binding collective climate and energy framework.

Their accession took the Union to 27 states and completed the eastward enlargement wave in the Black Sea region. Slovenia adopted the euro the same year, followed by Cyprus and Malta in 2008.

Adopted on 20 December 2005 by the member states, Council, Parliament and Commission, it set the shared basis for EU development action. It underpinned the EU's role as a major global aid actor.

Leaders agreed at their October 2005 meeting to introduce a comprehensive European energy policy, with the first draft published in January 2007. It responded to heavy import dependence, with 82 per cent of oil and 57 per cent of gas imported in 2007.

An effort to establish a Constitution for Europe, growing out of a Convention held in 2002–2003, foundered when it was rejected in referenda in France and the Netherlands in 2005.

In its biggest enlargement, ten new countries joined in 2004 — Cyprus, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia and Slovenia. Bulgaria and Romania followed in 2007 and Croatia in 2013, bringing membership to 28. A 2021 study in the Journal of Political Economy found the enlargement had aggregate beneficial economic effects on all groups in both old and new member states.

The euro became a fully convertible currency and national currencies in the twelve-member eurozone were phased out. The eurozone has since grown to 21 countries and the euro became the world's second-largest reserve currency.

For the first time the Commission prevented a merger between two United States companies already approved by their national authority. It demonstrated the extraterritorial reach of EU competition power, later reinforced by a fine of over €777 million on Microsoft.

To ensure the EU could function efficiently with an expanded membership, the Treaty of Nice, signed in 2000, set forth rules aimed at streamlining the size and procedures of EU institutions.

The euro was launched in world money markets on 1 January 1999, becoming the unit of exchange for all member states except Denmark, Sweden and the United Kingdom. In 2002 citizens of those 12 participating countries began using euro banknotes and coins.

Following the Kosovo War, leaders committed to credible military forces and the readiness to use them in international crises without prejudice to NATO. The Helsinki European Council of 10–11 December 1999 called for permanent political-military institutions, leading to the EU Military Staff and later the Battlegroups.

The 1995 accession of Austria, Finland and Sweden raised the membership total to 15.

Meeting in Copenhagen, EU leaders defined the political and economic conditions for accession. The criteria governed the planned enlargement to the former communist states of Central and Eastern Europe, plus Cyprus and Malta.

Signed on 7 February 1992 and in force from 1 November 1993, the Treaty of Maastricht laid the basis for cooperation in foreign and defence policy, in judicial and internal affairs, and in the creation of an economic and monetary union including a common currency, binding members to convergence criteria. It created the European Union, at the time standing alongside the European Community, along with EU citizenship, and renamed the EEC the European Community. Its main architects were Horst Köhler, Helmut Kohl and François Mitterrand.

After the fall of the Eastern Bloc, East Germany entered the communities as part of a reunified Germany. It was the first extension of the Community into the former communist bloc.

TEN-T was established to manage cross-border road, railway, airport and water infrastructure. Its Core Network is to be completed by 2030 and its Comprehensive Network by 2050.