Twenty-seven states, one single market, and a machine of institutions in Brussels, Strasbourg, Frankfurt and Luxembourg. The EU is the world's most elaborate experiment in shared sovereignty, and its power is real precisely because it is so hard to use.
Published 14 October 2026 · 06:00 GMT
No other political creation on earth looks like the European Union. It is not a country: it has no army of its own, no single government, no president who can speak for it the way a head of state speaks for a nation. It is not a mere alliance either: its laws override national laws, its court can strike down a member state's statute, and its single market means a product approved in Lisbon can be sold in Helsinki without a second inspection. The Union is something in between, the most elaborate experiment in shared sovereignty ever attempted, and its power is real precisely because it is so hard to use.
The numbers give the experiment its weight. Twenty-seven member states. About 450 million citizens. The world's largest single market, and one of the world's largest trading powers. A combined economy that rivals the United States and China in size, depending on the measure used. A currency, the euro, used by 20 member states and held as a reserve currency by central banks around the world. When the Union acts as one, on trade or on competition or on product standards, it sets terms that companies from California to Guangzhou must obey. When it cannot act as one, it produces communiques, and the world notices the difference.
The machinery that produces those two outcomes is spread across four cities, and understanding the geography is the first step to understanding the power. The European Commission sits in Brussels and holds the near-monopoly on proposing EU law. The European Parliament meets in Strasbourg and Brussels, is directly elected, and must approve most laws alongside the Council of the EU, where national ministers sit. The European Council, the gathering of heads of state and government, meets in Brussels to set the political direction. The Court of Justice sits in Luxembourg, and the European Central Bank in Frankfurt. No single building, no single person, holds the levers, and that diffusion is the point.
Start with a proposal. In most fields, only the Commission can formally propose legislation, which gives the unelected executive an agenda-setting power that national parliaments would envy. The Commission drafts, consults, and publishes a text. Then the ordinary legislative procedure begins: the directly elected Parliament amends, the Council, representing member governments, amends, and the two must agree on an identical text before it becomes law. Thousands of officials, lobbyists, diplomats and elected members take part, and the process can run for years. It is slow by design, because a law that will bind 27 democracies is meant to be hard to pass and harder to reverse.
The voting rule decides how hard. For most legislation, the Council decides by qualified majority: at least 55 percent of member states representing at least 65 percent of the Union's population. That formula is the Union in miniature, balancing states against people, so that neither the smallest members nor the largest can dominate alone. But in the fields that touch sovereignty most directly, foreign policy, taxation, and treaty change, unanimity still rules, and a single member state can block the whole Union. Hungary has used that veto on Ukraine-related decisions. Other states have used it on tax. Every enlargement of qualified majority voting is therefore a fight about how much sovereignty the members are willing to pool, and the fight never ends.
The Court of Justice is the machine's quiet engine. Since the 1960s, the Court has held that EU law takes precedence over conflicting national law, and that individuals can rely on EU rights directly in national courts. Those doctrines, built case by case rather than by grand proclamation, are what turned treaties into a legal order. When the Court rules that a member state has failed to fulfil its obligations, the state must comply or face fines. Governments grumble, sometimes loudly, but compliance is the norm, because a Union whose law can be ignored at will is not a Union at all.
The first jam is foreign policy. The Union is an economic giant and a geopolitical lightweight, or so the familiar complaint runs, and there is truth in it. Trade, sanctions design, development aid and enlargement are tools the Union wields with real weight. But a common foreign policy requires unanimity, and unanimity gives every capital a veto over the common line. On China, on the Middle East, on the war in Ukraine, the Union has often spoken with one voice eventually, after long negotiation, but the world has learned that eventually is doing a lot of work in that sentence. The High Representative coordinates, but cannot command.
The second jam is money. The Union's budget is small relative to the economies it serves, roughly one percent of the members' combined income, and it cannot borrow at scale without unanimous agreement, as the pandemic-era recovery fund showed. That fund, agreed in 2020 and worth 750 billion euros, was a breakthrough precisely because it involved joint borrowing, and it was sold as a one-off. The debate over whether to make such instruments permanent, whether for defence, for energy, or for industrial policy, is the Union's central fiscal argument, and it pits frugal northern states against southern and eastern states that see shared debt as the price of shared security.
The third jam is enlargement. A queue of candidate countries waits at the door: the Western Balkans, Ukraine, Moldova, and others, each at a different stage of negotiation. Every enlargement requires unanimous agreement by the existing members, and every candidate must adopt the whole body of EU law, tens of thousands of pages of it, before joining. The 2004 enlargement, which took in ten mostly eastern states at once, remains the Union's great success story and its great cautionary tale: it extended stability eastward, and it strained the institutions designed for a smaller club. The question now is whether the Union can reform its own decision rules before it grows again, or whether it will grow and hope the rules hold.
Coverage in Western Europe and North America tends to frame the Union as a regulatory superpower. In this telling, the real power is not the summit communique but the standard: the privacy rule, the competition fine, the chemicals regulation that forces global companies to build to European specifications or lose the market. Brussels is read as a place where law becomes leverage, and where the single market of 450 million consumers is a bargaining chip that even the largest companies cannot ignore.
The Western lens is also the most impatient with the Union's foreign policy machinery. The veto, the late-night summits, the lowest-common-denominator statements: all are read as evidence that the Union punches below its economic weight. The reform debate, in this telling, is a race between the world, which is not waiting, and institutions built for a calmer era.
From the Union's eastern members, the story is about security and sovereignty. In this telling, the Union is first a shelter: membership anchors a country in a legal order, a market and a political community that no neighbour can easily threaten. The eastern lens is the most supportive of enlargement, seeing in Ukraine's and Moldova's candidacies a repeat of its own escape from the Soviet orbit, and the most sceptical of any reform that would let big western states outvote small eastern ones.
The Eastern lens also carries a grievance. Rules on law and governance, applied through funding conditions, are read in Warsaw and Budapest at different times as either a defence of shared values or an instrument of political discipline. The argument over who judges the judges is the Union's hardest internal dispute, because it is about whether membership means accepting outside verdicts on a country's own courts.
From the Global South, the Union looks like a demanding partner. Its trade deals, its carbon border levy on imports, its due-diligence rules for supply chains: all are read as Europe exporting its standards along with its goods. In this telling, the Union's regulatory power is real and double-edged. It can raise labour and environmental standards worldwide, and it can also shut small exporters out of its market because they cannot afford the paperwork to prove compliance.
The Southern lens also notes the Union's relative generosity where it counts: development aid, climate finance, and a willingness to negotiate as a bloc with the African Union. The judgement is mixed. Europe is the partner that preaches, the partner that pays, and the partner whose rules decide whether your coffee or your steel can cross its border.
