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The Editors of Encyclopaedia Britannica Last Updated: Sep 12, 2024 • Article History Table of ContentsAsk the Chatbot a Question
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The Maastricht Treaty (formally known as the Treaty on European Union), which was signed on February 7, 1992, created the European Union. The treaty met with substantial resistance in some countries. In Denmark, for example, voters who were worried about infringements upon their country’s sovereignty defeated a referendum on the original treaty in June 1992, though a revised treaty was approved the following May. Voters in France narrowly approved the treaty in September, and in July 1993 British Prime Minister John Major was forced to call a vote of confidence in order to secure its passage. An amended version of the treaty officially took effect on November 1, 1993.
The treaty consisted of three main pillars: the European Communities, a common foreign and security policy, and enhanced cooperation in home (domestic) affairs and justice. The treaty changed the name of the European Economic Community to the European Community (EC), which became the primary component of the new European Union. The agreement gave the EC broader authority, including formal control of community policies on development, education, public health, and consumer protection and an increased role in environmental protection, social and economic cohesion, and technological research. It also established EU citizenship, which entailed the right of EU citizens to vote and to run for office in local and European Parliament elections in their country of residence, regardless of national citizenship.
The Maastricht Treaty specified an agenda for incorporating monetary policy into the EC and formalized planning that had begun in the late 1980s to replace national currencies with a common currency managed by common monetary institutions. The treaty defined a set of “convergence criteria” that specified the conditions under which a member would qualify for participation in the common currency. Countries were required to have annual budget deficits not exceeding 3 percent of gross domestic product (GDP), public debt under 60 percent of GDP, inflation rates within 1.5 percent of the three lowest inflation rates in the EU, and exchange-rate stability. The members that qualified were to decide whether to proceed to the final stage—the adoption of a single currency. The decision required the establishment of permanent exchange rates and, after a transition period, the replacement of national currencies with the common currency, called the euro. Although several countries failed to meet the convergence criteria (e.g., in Italy and Belgium public debt exceeded 120 percent of GDP), the Commission qualified nearly all members for monetary union, and on January 1, 1999, 11 countries—Austria, Belgium, Finland, France, Germany, Ireland, Italy, Luxembourg, the Netherlands, Portugal, and Spain—adopted the currency and relinquished control over their exchange rates. Greece failed to qualify, and Denmark, Sweden, and the United Kingdom chose not to apply for membership. Greece was admitted to the euro beginning in 2001. Initially used only by financial markets and businesses, the euro was introduced for use by the general public on January 1, 2002.
The Maastricht Treaty significantly modified the EEC’s institutions and decision-making processes. The Commission was reformed to increase its accountability to the Parliament. Beginning in 1995, the term of office for commissioners, who now had to be approved by the Parliament, was lengthened to five years to correspond to the terms served by members of the Parliament. The ECJ was granted the authority to impose fines on members for noncompliance. Several new institutions were created, including the European Central Bank, the European System of Central Banks, and the European Monetary Institute. The treaty also created a regional committee, which served as an advisory body for commissioners and the Council of Ministers on issues relevant to subnational, regional, or local constituencies.
One of the most radical changes was the reform of the legislative process. The range of policies subject to qualified majority voting in the Council of Ministers was broadened. The treaty also endowed the Parliament with a limited right of rejection over legislation in most of the areas subject to qualified majority voting, and in a few areas, including citizenship, it was given veto power. The treaty formally incorporated the Court of Auditors, which was created in the 1970s to monitor revenue and expenditures, into the EC.
As part of the treaty’s second pillar, members undertook to define and implement common foreign and security policies. Members agreed that, where possible, they would adopt common defense policies, which would be implemented through the Western European Union, a security organization that includes many EU members. Joint actions—which were not subject to monitoring or enforcement by the Commission or the ECJ—required unanimity.
The EU’s third pillar included several areas of common concern related to the free movement of people within the EU’s borders. The elimination of border controls conflicted with some national immigration, asylum, and residency policies and made it difficult to combat crime and to apply national civil codes uniformly, thus creating the need for new Europe-wide policies. For example, national asylum policies that treated third-country nationals differently could not, in practice, endure once people were allowed to move freely across national borders.
On January 1, 1995, Sweden, Austria, and Finland joined the EU, leaving Iceland, Norway, and Switzerland as the only major western European countries outside the organization. Norway’s government twice (1972 and 1994) attempted to join, but its voters rejected membership on each occasion. Switzerland tabled its application in the early 1990s. Norway, Iceland, and the members of the EU (along with Liechtenstein) are members of a free trade area called the European Economic Area, which allows freedom of movement for goods, services, capital, and people.
Two subsequent treaties revised the policies and institutions of the EU. The first, the Treaty of Amsterdam, was signed in 1997 and entered into force on May 1, 1999. Building on the social protocol of the Maastricht Treaty, it identified as EU objectives the promotion of employment, improved living and working conditions, and proper social protection; added sex-discrimination protections and transferred asylum, immigration, and civil judicial policy to the community’s jurisdiction; granted the Council of Ministers the power to penalize members for serious violations of fundamental human rights; and gave the Parliament veto power over a broad range of EC policies as well as the power to reject the European Council’s nominee for president of the Commission.
A second treaty, the Treaty of Nice, was signed in 2001 and entered into force on February 1, 2003. Negotiated in preparation for the admission of new members from eastern Europe, it contained major reforms. The maximum number of seats on the Commission was set at 27, the number of commissioners appointed by members was made the same at one each, and the president of the Commission was given greater independence from national governments. Qualified majority voting in the Council of Ministers was extended to several new areas. Approval of legislation by qualified voting required the support of members representing at least 62 percent of the EU population and either the support of a majority of members or a supermajority of votes cast. Although national vetoes remained in areas such as taxation and social policy, countries choosing to pursue further integration in limited areas were not precluded from doing so.
After the end of Cold War, many of the former communist countries of eastern and central Europe applied for EU membership. However, their relative lack of economic development threatened to hinder their full integration into EU institutions. To address this problem, the EU considered a stratified system under which subsets of countries would participate in some components of economic integration (e.g., a free trade area) but not in others (e.g., the single currency). Turkey, at the periphery of Europe, also applied for membership, though its application was controversial because it was a predominantly Islamic country, because it was widely accused of human rights violations, and because it had historically tense relations with Greece (especially over Cyprus). Despite opposition from those who feared that expansion of the EU would stifle consensus and inhibit the development of Europe-wide foreign and security policies, the EU in 2004 admitted 10 countries (Cyprus, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Slovakia, and Slovenia), all but two of which (Cyprus and Malta) were former communist states; Bulgaria and Romania joined in 2007. Negotiations on Turkey’s membership application began in 2005 but faced numerous difficulties.
Building on the limited economic and political goals of the ECSC, the countries of western Europe have achieved an unprecedented level of integration and cooperation. The degree of legal integration, supranational political authority, and economic integration in the EU greatly surpasses that of other international organizations. Indeed, although the EU has not replaced the nation-state, its institutions have increasingly resembled a parliamentary democratic political system at the supranational level.
In 2002 the Convention on the Future of Europe, chaired by former French president Valéry Giscard d’Estaing, was established to draft a constitution for the enlarged EU. Among the most difficult problems confronting the framers of the document was how to distribute power within the EU between large and small members and how to adapt the organization’s institutions to accommodate a membership that would be more than four times larger than that of the original EEC. The framers also needed to balance the ideal of deeper integration against the goal of protecting members’ national traditions. The drafting process evoked considerable controversy, particularly over the question of whether the constitution should mention God and the Christian heritage of much of European society (the final version did not). The proposed constitution was signed in 2004 but required ratification by all EU members to take effect; voters in France and the Netherlands rejected it in 2005, thereby scuttling the constitution at least in the short term. It would have created a full-time president, a European foreign minister, a public prosecutor, and a charter of fundamental rights. Under the constitution the powers of the European Parliament would have been greatly expanded and the EU given a “legal personality” that entailed the sole right to negotiate most treaties on its members’ behalf.
Under the leadership of Germany, work began in early 2007 on a reform treaty intended to replace the failed constitution. The resulting Lisbon Treaty, signed in December 2007, required approval by all 27 EU member countries in order to take effect. The treaty, which retained portions of the draft constitution, would establish an EU presidency, consolidate foreign policy representation for the EU, and devolve additional powers to the European Commission, the European Court of Justice, and the European Parliament. Unlike the draft constitution, the Lisbon Treaty would amend rather than replace existing treaties. The treaty failed, at least in the short term, in June 2008 after it was rejected by voters in a national referendum in Ireland. However, in a second referendum, in October 2009, Irish voters—apparently concerned that another “no” vote would imperil Ireland’s ailing economy—overwhelmingly approved the treaty. A week after the Irish vote, Poland completed its ratification of the treaty as well. At that time the treaty remained to be ratified by only one country, the Czech Republic. Although the Czech Parliament already had approved the treaty, Czech Pres. Václav Klaus expressed concern that it would threaten Czech sovereignty and refused to sign it. In early November, after the Czech Constitutional Court ruled that the treaty did not imperil the Czech constitution, Klaus reluctantly endorsed the document, completing the country’s ratification process. Having been approved by all 27 member countries, the treaty entered into force on December 1, 2009.
