Portal:European Union

Introduction

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Welcome to the European Union Portal!

The European Union (EU) is a supranational political and economic union of 27 member states that are located primarily in Europe. The union has a total area of 4,233,255 km² (1,634,469 sq mi) and an estimated population of more than 450 million as of 2025. The EU is often described as a sui generis political entity combining characteristics of both a federation and a confederation.

Containing 5.5% of the world population in 2023, EU member states generated a nominal gross domestic product (GDP) of around €17.935 trillion in 2024, accounting for approximately one sixth of global economic output. Its cornerstone, the Customs Union, paved the way to establishing an internal single market based on standardised legal framework and legislation that applies in all member states in those matters, and only those matters, where the states have agreed to act as one. EU policies aim to ensure the free movement of people, goods, services and capital within the internal market; enact legislation in justice and home affairs; and maintain common policies on trade, agriculture, fisheries, and regional development.

The EU was established, along with its citizenship, when the Maastricht Treaty came into force in 1993, and was incorporated as an international legal juridical person upon entry into force of the Treaty of Lisbon in 2009. Its beginnings can be traced to the Inner Six states (Belgium, France, Italy, Luxembourg, the Netherlands, and West Germany) at the start of modern European integration in 1948, and to the Western Union, the International Authority for the Ruhr, the European Coal and Steel Community, the European Economic Community and the European Atomic Energy Community, which were established by treaties. These increasingly amalgamated bodies grew, with their legal successor the EU, both in size through the accessions of a further 22 states from 1973 to 2013, and in power through acquisitions of policy areas. In 2020, the United Kingdom became the only member state to leave the EU; ten countries are aspiring or negotiating to join it. (Full article...)

Selected article

The Treaty of Lisbon or Lisbon Treaty (initially known as the Reform Treaty) is an international agreement which amends the two treaties which form the constitutional basis of the European Union (EU). The Lisbon Treaty was signed by the EU member states on 13 December 2007, and entered into force on 1 December 2009. It amends the Maastricht Treaty (also known as the Treaty on European Union) and the Treaty establishing the European Community (TEC; also known as the Treaty of Rome). In this process, the Rome Treaty was renamed to the Treaty on the Functioning of the European Union (TFEU).

Prominent changes included the move from unanimity to qualified majority voting in several policy areas in the Council of Ministers, a change in calculating such a majority to a new double majority, a more powerful European Parliament forming a bicameral legislature alongside the Council of ministers under the ordinary legislative procedure, a consolidated legal personality for the EU and the creation of a long-term President of the European Council and a High Representative of the Union for Foreign Affairs and Security Policy. The Treaty also made the Union's bill of rights, the Charter of Fundamental Rights, legally binding.

Selected picture

Reichstag

Photo: Matthew Field

The Reichstag building is a historical edifice in Berlin, Germany, constructed to house the Reichstag, parliament of the German Empire. It was opened in 1894 and housed the Reichstag until 1933, when it was severely damaged in a fire. After German reunification it underwent a reconstruction, completed in 1999, and now houses the modern Bundestag.

Did you know?

...that Monaco, San Marino, and Vatican City all mint their own euro coins, with their own national symbols on the back, despite not being EU members?

...that Slovenia joined the Euro on January 1, 2007?

Selected city

Vilnius is the capital and largest city of Lithuania, with a population of 537,152 as of 2013. It is the capital of the Vilnius city municipality and of the Vilnius district municipality. It is also the county seat of Vilnius County. Vilnius is situated in southeastern Lithuania at the confluence of the Vilnia and Neris Rivers. It is believed that Vilnius, like many other cities, was named after a crossing river, Vilnia. Vilnius is a cosmopolitan city with diverse architecture. There are more than 40 churches in Vilnius.

Some historians identify the city with Voruta, a legendary capital of Mindaugas who was crowned in 1253 as King of Lithuania. The city was first mentioned in written sources in 1323, in letters of Grand Duke Gediminas that were sent to German cities and invited German and Jewish community to settle in the capital city. In 1387, the city was granted city rights by Jogaila, one of Gediminas' successors.