Brexit has been economically damaging:
But Brexit supporters argue that the long-term benefits (sovereignty, control over immigration, ability to make trade deals) will outweigh the short-term costs.
The EU faces several challenges:
Several countries want to join the EU, including Ukraine, Moldova, and Western Balkan countries (Serbia, Albania, North Macedonia, Bosnia, Montenegro, Kosovo). But enlargement is slow and controversial, because new members must meet strict criteria (democracy, rule of law, economic stability).
The EU is often criticised as undemocratic and distant from ordinary citizens. Turnout in European Parliament elections is low (around 50%), and many people do not understand how the EU works.
Populist and Eurosceptic parties have gained ground in many member states (Italy, Hungary, Poland, France), and some have called for referendums on EU membership. So far, no other country has left, but the threat remains.
The eurozone crisis exposed deep economic divisions between northern Europe (Germany, Netherlands) and southern Europe (Greece, Italy, Spain). These divisions remain, and future crises could threaten the euro.
The EU has 27 member states with 450 million people, forming the world's largest single market with free movement of goods, services, capital, and people. The EU budget is €168 billion per year, funded by member contributions, with spending on agriculture (31%), regional development (34%), and research (13%). EU laws are made by the European Commission (proposes), European Parliament (elected), and Council of the EU (member governments), with most decisions requiring consensus. The UK left the EU in 2020 after a 2016 referendum, citing sovereignty, immigration, and democracy concerns, though economic costs have been significant. The eurozone has 20 member states using the euro, while 7 EU members keep their own currencies. The EU is the most ambitious experiment in international cooperation in history, but it is also controversial, bureaucratic, and facing challenges from populism, economic divergence, and enlargement. Whether it survives and thrives depends on whether it can reform, reconnect with citizens, and prove its value in a changing world.