For the first time since Brexit, the EU has a tangible chance to grow again. But as countries like Montenegro fast approach membership while others look to Europe as a security anchor, Brussels' enlargement ambition is about to face its moment of truth.
The EU's enlargement is riding a once-in-a-generation momentum, with several "frontrunners" nearing the finish line, Ukraine and Moldova taking their first definitive steps out of Moscow's orbit, and Iceland weighing whether to resume accession talks.