What Is the European Union? Origins, Governance, Concrete Results, and a Historical Judgment on Brexit

Introduction

If we reduce the European Union to a trading arrangement, an administrative machine, or a slow-moving bureaucracy, we miss its real historical importance. The EU matters because it is one of the modern world’s rare large-scale experiments in shared political order: sovereign states, long shaped by rivalry and war, chose to place part of their authority inside common institutions in order to escape the old cycle of fear, balancing, and destruction.

That is why the EU should not be treated as a purely European technical story. It is one of humanity’s most serious attempts to answer a broader question: can large political communities cooperate beyond the nation-state without collapsing into empire, domination, or permanent geopolitical competition?

I. What the European Union is — and what it is not

Before discussing its history, we need to define it clearly.

  • The European Union is a treaty-based political and legal union with 27 member states.
  • The euro area is the group of states using the euro as official currency. According to the European Central Bank, as of 2026 the euro is used in 21 of the EU’s 27 member states.[1]
  • The Schengen area is the free-movement space without systematic internal border checks. According to the European Commission, it includes 29 countries in 2026, including 4 non-EU states.[2]
  • Europe is the wider geographical and civilizational space, which is larger than the EU.

The EU is therefore not a normal international organization, but neither is it a completed federal state. It is a treaty-based union built around shared sovereignty, common law, multi-level institutions, and differentiated integration.

Core features

  • shared sovereignty rather than total isolation of national power;
  • a common legal order with concrete effects;
  • dual legitimacy through both member states and citizens;
  • differentiated integration;
  • rule-based coordination through law, courts, budgets, markets, and common policies.

II. The origin of the Union: a political answer to the ruins of war

The deepest origin of the EU lies in post-1945 Europe. Europe had been the center of modern industry, science, finance, constitutional politics, and global power, but it had also become the center of modern self-destruction: imperial competition, extreme nationalism, total war, and mass killing. In that context, Franco-German reconciliation was not merely diplomatic; it was civilizational.

The Schuman Declaration of 1950 offered a decisive answer: peace should no longer depend only on promises or conferences, but on institutions that make war structurally less likely. The European Coal and Steel Community of 1951 took the industries most closely linked to armament and placed them within a shared framework.[3]

The Treaty of Rome in 1957 expanded integration into a wider economic project. Over time, Europe built the common market, widened the role of European law, expanded the authority of the Parliament, opened internal borders, created a common currency, and ultimately formalized the European Union in the Maastricht Treaty of 1992. The Lisbon Treaty, in force from 2009, further stabilized the institutional architecture.[4]

III. A timeline of European integration

1950  Schuman Declaration
1951  European Coal and Steel Community
1957  Treaty of Rome
1985  Schengen Agreement
1992  Maastricht Treaty
1999  Euro launched as accounting currency
2002  Euro banknotes and coins enter circulation
2004  Eastern enlargement
2009  Lisbon Treaty enters into force
2016  Brexit referendum
2020  United Kingdom formally leaves the EU
2026  EU at 27, euro area at 21, Schengen at 29

IV. Through which channels does the EU govern?

It is not accurate to say that the EU “governs Europe” in the same way a centralized state governs its territory. More accurately, the EU organizes common governance through several channels.

1. Institutions

  • The European Council sets strategic direction.
  • The European Commission proposes and executes many common policies.
  • The European Parliament represents citizens.
  • The Council of the European Union represents national governments and co-legislates with Parliament.
  • The Court of Justice of the European Union guarantees uniform interpretation of EU law.
  • The European Central Bank manages monetary policy in the euro area.

2. Law and legislation

One of the EU’s distinctive strengths is that it does not remain at the level of declaration. In many fields, the Commission proposes, Parliament and Council adopt legislation under the ordinary legislative procedure, and the Court gives the system coherence through legal interpretation.[5]

3. The single market

The single market is one of the Union’s most powerful organizing tools. It is not merely free trade. It is a rule-based economic space structured to make the movement of goods, services, capital, and people more coherent across borders.

4. The euro

The euro is one of the boldest projects in European integration. But it also reveals the Union’s complexity. The euro area is not the whole EU, and monetary union has not automatically produced full fiscal or political union.

5. Schengen

Schengen transformed daily European life by making movement for work, study, tourism, and family life much easier. But Schengen and the EU are not identical. Some non-EU countries participate in Schengen, while the path into Schengen for EU members has not always been simultaneous.

6. Budget, common policies, and regulatory power

The EU also acts through budgetary instruments and long-term policy frameworks: agriculture, cohesion funds, research, competition law, trade policy, digital regulation, environmental policy, consumer protection, and educational exchange.

V. What has the EU achieved so far?

  • durable peace among member states;
  • one of the world’s largest integrated markets;
  • a common currency across 21 member states;
  • a Schengen area of 29 countries;
  • global rule-shaping capacity in trade, privacy, competition, and standards;
  • the gradual integration of Central and Eastern Europe into a more stable legal and political framework.

VI. Three national paths: France, Germany, and the United Kingdom

France

France has often understood Europe not merely as a market but as a political and strategic space. It has tended to emphasize public power, common ambition, and a civilizational meaning of Europe.

Germany

Germany’s European path is deeply marked by the postwar settlement. European integration became a framework for stability, legal credibility, restraint, and reinsertion into a trusted political order.

United Kingdom

The United Kingdom contributed greatly to Europe, but often from a greater distance. Its approach was more market-oriented, parliamentary, and wary of deep pooled sovereignty.

These three paths help explain why the EU is structurally complex: it must constantly accommodate different understandings of law, sovereignty, markets, and political belonging.

VII. Simplified institutional diagram

European Council
  ↓ overall direction
European Commission ── proposes ──┐
                                   ├── European Parliament + Council of the EU: co-legislation
Court of Justice ── interpretation ┘
ECB ── monetary policy for the euro area
Member states ── implementation and domestic adaptation

VIII. The limits and tensions of the Union

No serious discussion of the EU should romanticize it. Its weaknesses are real.

  • democratic distance or democratic deficit;
  • economic and political asymmetries among member states;
  • tension between monetary integration and fiscal solidarity;
  • persistent questions of identity, migration, borders, and belonging.

IX. Was Brexit a step backward?

My answer remains yes: in historical direction, Brexit was largely a step backward. It brought back the imagination of solitary sovereignty at precisely the moment when large political problems had already become transnational.

Britain gained symbolic autonomy, but it lost part of its structural influence over the making of European rules. At the same time, Brexit revealed real weaknesses inside the Union itself: democratic distance, territorial imbalance, and identity anxiety.

X. Conclusion

The European Union is one of the boldest attempts in modern history to organize political coexistence beyond the narrow frame of isolated national sovereignty. It remains unfinished, imperfect, and tension-filled. Yet it remains historically precious because it demonstrates that large-scale cooperation can be built through law, institutions, markets, and negotiated power-sharing.

XI. Treaties and legal sources

XII. Notes

  • [1] The ECB indicates that, as of 2026, the euro is used in 21 EU member states.
  • [2] The European Commission states that the Schengen area includes 29 countries in 2026.
  • [3] The originality of the Schuman Declaration lies in pooling the strategic industrial resources that had made war possible.
  • [4] European integration did not advance in a straight line; it was shaped by crises, enlargements, treaty revisions, and political compromises.
  • [5] The ordinary legislative procedure reflects the Union’s dual legitimacy: citizens and member states both participate.

XIII. References

  • Dinan, Desmond. Europe Recast: A History of European Union.
  • Milward, Alan S. The European Rescue of the Nation-State.
  • Judt, Tony. Postwar.
  • van Middelaar, Luuk. The Passage to Europe.

Final judgment

The EU should not be judged as a perfect machine. It should be judged as one of the boldest modern attempts to organize common political life beyond strict national sovereignty.