Do you agree with the view that the EU has thus far proved to be the most successful experiment in the regional integration processes? Account for its successes and also some of the recent challenges that it is faced with.

Successes

The EU turned a coal-and-steel bargain among states that had destroyed each other twice in a century into a single market, a dense body of directly effective law, a Court of Justice, and, for many members, a single currency. Schengen made internal movement ordinary. Repeated enlargement spread democratic conditionality to Southern and then Eastern Europe. No other regional body has pooled so much regulatory sovereignty or produced so much intra-regional trade as a share of members’ lives. In the language of question 2(b), it is the home of the post-modern state. Compared with ASEAN’s informal consensus or SAARC’s freeze, the EU is a legal community, not only a meeting calendar.

Peace among France and Germany is the foundational success. The euro, for all its faults, is a political fact that NAFTA never attempted. Global standard-setting — data protection, chemicals, digital markets — gives the EU power beyond its military weight.

Recent challenges

Brexit was the first major secession. It showed that pooling is reversible and that identity politics can defeat market logic. Rule-of-law fights with Hungary and Poland exposed a gap: the Union has tools against backsliding, and it uses them slowly. Migration after 2015 split front-line and interior states and revived internal borders. Russia’s war on Ukraine ended the cheap-energy model and forced a security debate that NATO still dominates, which is the limit of EU strategic autonomy. Debt and inflation after the euro crisis and COVID strained North–South solidarity; joint borrowing was a step, not a finished federal treasury. Enlargement toward Ukraine and the Western Balkans will test absorption again.

These challenges are serious. They have not dissolved the single market or the Court. Success is therefore comparative and incomplete.

Verdict

• Yes: the EU remains the most successful regional integration experiment in depth and in transforming interstate war into domestic-style law. No: it is not a finished federation, and the 2010s–2020s have been a stress test of consent. Other regions should copy institutions and law, not a fantasy of frictionless identity.