Discussions will revolve around regional investment, security, and the socio-economic recovery from the coronavirus pandemic.
Delegates will also assess the progression of six of the Balkan states (Albania, Bosnia, Kosovo, Montenegro, North Macedonia and Serbia) towards becoming future EU members.
The summit will be chaired by European Council President Charles Michel.
European Commission President Ursula von der Leyen and German Chancellor Angela Merkel will also be present.
The EU Environment Council meeting will also be held earlier in the day.
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