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The new strategy sets the stage for North Macedonia and Albania accession's battles - which Paris blocked last year.
We take a look at the big issues likely to cause headaches in Brussels and across European capitals over the next twelve months.
Ten countries joined the European Union on May 1, 2004.
Summit reiterated objectives set 15 years ago, and reaffirmed determination to bring the Balkans into the EU family, but the post-summit press conference ranged further afield, to transatlantic relations, and Iran.
European Commission President Jean-Claude Juncker speaks to Euronews about border disputes and EU enlargement.
This is the Brief from Brussels, a roundup of the top stories from the EU's de facto political capital.
A joint military exercise between Serbian and US troops is part of an effort to boost relations between the Balkan country and NATO