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 total population of over 448 million. The EU has often been described as a sui generis political entity combining the characteristics of both a federation and a confederation.
The Treaty on European Union, commonly known as the Maastricht Treaty, is the foundation treaty of the European Union (EU). Concluded in 1992 between the then-twelve member states of the European Communities, it announced "a new stage in the process of European integration" chiefly in provisions for a shared European citizenship, for the eventual introduction of a single currency, and for common foreign and security policies. Although these were widely seen to presage a "federal Europe", the focus of constitutional debate shifted to the later 2007 Treaty of Lisbon. In the wake of the Eurozone debt crisis unfolding from 2009, the most enduring reference to the Maastricht Treaty has been to the rules of compliance – the "Maastricht criteria" – for the currency union.
The Treaty on European Union (2007) is one of the primary Treaties of the European Union, alongside the Treaty on the Functioning of the European Union (TFEU). The TEU form the basis of EU law, by setting out general principles of the EU's purpose, the governance of its central institutions, as well as the rules on external, foreign and security policy.
The Schengen Agreement is a treaty which led to the creation of Europe's Schengen Area, in which internal border checks have largely been abolished. It was signed on 14 June 1985, near the town of Schengen, Luxembourg, by five of the ten member states of the then European Economic Community. It proposed measures intended to gradually abolish border checks at the signatories' common borders, including reduced-speed vehicle checks which allowed vehicles to cross borders without stopping, allowing residents in border areas freedom to cross borders away from fixed checkpoints, and the harmonisation of visa policies.
The Treaty of Paris was signed on 18 April 1951 between France, Italy, West Germany, Belgium, Luxembourg, and the Netherlands, establishing the European Coal and Steel Community (ECSC), which subsequently became part of the European Union. The treaty came into force on 23 July 1952 and expired on 23 July 2002, exactly fifty years after it came into effect.
Comitology in the European Union refers to a process by which EU law is implemented, modified or adjusted and takes place within "comitology committees" chaired by the European Commission. The official term for the process is committee procedure. Comitology committees are part of the EU's broader system of committees that assist in the making, adoption, and implementation of EU laws.
European Union citizenship is afforded to all citizens of member states of the European Union (EU). It was formally created with the adoption of the 1992 Maastricht Treaty, at the same time as the creation of the EU. EU citizenship is additional to, as it does not replace, national citizenship. It affords EU citizens with rights, freedoms and legal protections available under EU law.
The European single market, also known as the European internal market or the European common market, is the single market comprising mainly the 27 member states of the European Union (EU). With certain exceptions, it also comprises Iceland, Liechtenstein, and Norway and Switzerland. The single market seeks to guarantee the free movement of goods, capital, services, and people, known collectively as the "four freedoms". This is achieved through common rules and standards that all participating states are legally committed to follow.
In the European Union (EU), enhanced cooperation is a procedure where a minimum of nine EU member states are allowed to establish advanced integration or cooperation in an area within EU structures but without the other members being involved. As of October 2017, this procedure is being used in the fields of the Schengen acquis, divorce law, patents, property regimes of international couples, and European Public Prosecutor and is approved for the field of a financial transaction tax.
The Treaty of Lisbon is an international agreement that amends the two treaties which form the constitutional basis of the European Union (EU). The Treaty of Lisbon, which was signed by all EU member states on 13 December 2007, entered into force on 1 December 2009. It amends the Maastricht Treaty (1992), known in updated form as the Treaty on European Union (2007) or TEU, as well as the Treaty of Rome (1957), known in updated form as the Treaty on the Functioning of the European Union (2007) or TFEU. It also amends the attached treaty protocols as well as the Treaty establishing the European Atomic Energy Community (EURATOM).
The European Stability Mechanism (ESM) is an intergovernmental organization located in Luxembourg City, which operates under public international law for all eurozone member states having ratified a special ESM intergovernmental treaty. It was established on 27 September 2012 as a permanent firewall for the eurozone, to safeguard and provide instant access to financial assistance programmes for member states of the eurozone in financial difficulty, with a maximum lending capacity of €500 billion. It has replaced two earlier temporary EU funding programmes: the European Financial Stability Facility (EFSF) and the European Financial Stabilisation Mechanism (EFSM).
The general principles of European Union law are general principles of law which are applied by the European Court of Justice and the national courts of the member states when determining the lawfulness of legislative and administrative measures within the European Union. General principles of European Union law may be derived from common legal principles in the various EU member states, or general principles found in international law or European Union law. General principles of law should be distinguished from rules of law as principles are more general and open-ended in the sense that they need to be honed to be applied to specific cases with correct results.
The EU economic governance, Sixpack describes a set of European legislative measures to reform the Stability and Growth Pact and introduces greater macroeconomic surveillance, in response to the European debt crisis of 2009. These measures were bundled into a "six pack" of regulations, introduced in September 2010 in two versions respectively by the European Commission and a European Council task force. In March 2011, the ECOFIN council reached a preliminary agreement for the content of the Sixpack with the commission, and negotiations for endorsement by the European Parliament then started. Ultimately it entered into force 13 December 2011, after one year of preceding negotiations. The six regulations aim at strengthening the procedures to reduce public deficits and address macroeconomic imbalances.
The Treaties of the European Union are a set of international treaties between the European Union (EU) member states which sets out the EU's constitutional basis. They establish the various EU institutions together with their remit, procedures and objectives. The EU can only act within the competences granted to it through these treaties and amendment to the treaties requires the agreement and ratification of every single signatory.
The European Commission's Asylum, Migration and Integration Fund is a funding programme managed by the Directorate-General for Migration and Home Affairs which promotes the efficient management of migration flows and the implementation, strengthening and development of a common approach to asylum and immigration in the European Union. All EU Member States except Denmark participate in the implementation of this Fund. Most of the funds are provided to the EU Member States for activities addressing previously agreed upon themes. A part of the funding is reserved for emergency assistance. A final part is reserved for Union Actions, which are European Commission managed projects that are developed as either calls for proposals, direct awards, procurements, or delegation agreements.
The European Union policy for disabled people guarantees governmental responsibility for all disabled people in all of the EU's 27 member states. This policy operates in the framework of the subsidiarity principle: if possible, one should improve at the national level, though in principle the EU will refrain from setting hefty laws in this area. Through the activities of the Council of Europe and the United Nations, the EU disability policy has since been in effect in many EU countries for years.
The European Union's (EU) Common Commercial Policy, or EU Trade Policy, is the policy whereby EU Member States delegate authority to the European Commission to negotiate their external trade relations, with the aim of increasing trade amongst themselves and their bargaining power vis-à-vis the rest of the world. The Common Commercial Policy is logically necessitated by the existence of the Customs Union, which in turn is also the foundation upon which the Single Market and Monetary Union were later established.
The European Semester of the European Union was established in 2010 as an annual cycle of economic and fiscal policy coordination. It provides a central framework of processes within the EU socio-economic governance. The European Semester is a core component of the Economic and Monetary Union (EMU) and it annually aggregates different processes of control, surveillance and coordination of budgetary, fiscal, economic and social policies. It also offers a large space for discussions and interactions between the European institutions and Member States. As a recurrent cycle of budgetary cooperation among the EU Member States, it runs from November to June and is preceded in each country by a national semester running from July to October in which the recommendations introduced by the Commission and approved by the Council are to be adopted by national parliaments and construed into national legislation. The European Semester has evolved over the years with a gradual inclusion of social, economic, and employment objectives and it is governed by mainly three pillars which are a combination of hard and soft law due a mix of surveillance mechanisms and possible sanctions with coordination processes. The main objectives of the European Semester are noted as: contributing to ensuring convergence and stability in the EU; contributing to ensuring sound public finances; fostering economic growth; preventing excessive macroeconomic imbalances in the EU; and implementing the Europe 2020 strategy. However, the rate of the implementation of the recommendations adopted during the European Semester has been disappointing and has gradually declined since its initiation in 2011 which has led to an increase in the debate/criticism towards the effectiveness of the European Semester.
Consolidated version of the Treaty on the Functioning of the European Union at Wikisource 
