The European Union is one of the most unusual political creations in the world. It is not a country, yet it makes laws that apply directly to its members. It is not a simple trade group, yet economic cooperation runs through everything it does. Today the EU brings together 27 member states and roughly 450 million people, governed through a set of institutions that share power in a carefully balanced way.
Where the EU came from
The project began after the Second World War, when European leaders wanted to bind former enemies together so tightly that another war would become unthinkable. Early steps focused on pooling coal and steel production in the 1950s. Over the following decades, cooperation widened into a common market and then, with the Maastricht Treaty in 1993, into the European Union itself. Membership grew from a handful of Western European states to a bloc that now stretches across most of the continent. The United Kingdom left in 2020, leaving 27 members.
The main institutions
Power in the EU is deliberately divided so that no single body dominates. Four institutions do most of the everyday work of governing.
- The European Commission acts as the executive. It proposes new laws, manages the budget, and makes sure agreed rules are enforced. Each member state nominates one commissioner.
- The European Parliament is directly elected by citizens across the bloc. Its members debate and amend proposed laws and share the power to approve the budget.
- The Council of the European Union gathers ministers from national governments to negotiate and adopt laws alongside Parliament.
- The European Council brings together heads of state and government to set the EU's broad political direction, though it does not pass laws itself.
A Court of Justice interprets EU law and settles disputes, and a European Central Bank manages the shared currency for the countries that use it.
How a rule becomes law
Most EU laws follow a shared path. The Commission drafts a proposal, and then the Parliament and the Council must both agree on the final text. Because these two bodies represent citizens and national governments respectively, a law needs the backing of both to pass. Once adopted, some rules apply automatically in every country, while others set goals that each nation must reach through its own national laws.
The single market and the euro
The core achievement of the EU is the single market, built on what are often called the four freedoms: the free movement of goods, services, money, and people. In practice this means a product approved in one member state can usually be sold in all of them, and citizens can live and work across borders. Not everything is shared, though. Twenty countries use the euro as their currency, while others keep their own money. Border-free travel under the Schengen system also overlaps with, but is not identical to, EU membership.
Membership itself is not fixed. Countries can apply to join, and the process is demanding. Applicants must show stable democratic institutions, a functioning market economy, and the ability to take on the vast body of EU rules. Negotiations can stretch across many years, and existing members must all agree. On top of national citizenship, everyone who belongs to a member state is also an EU citizen, a status that carries rights to travel, live, work and vote in local and European elections across the bloc.
Why it matters and where it is debated
The EU shapes daily life in ways many people never notice, from food safety standards and data-privacy rules to consumer protections and roaming charges on phones. Because it pools authority that once belonged only to national governments, it is also a source of ongoing debate. Supporters point to decades of peace, prosperity, and the leverage that comes from acting as a bloc. Critics argue that too much power has drifted from national capitals to Brussels. Understanding how the institutions actually share power is the first step to making sense of that argument, and of the European news that flows from it.