Defence, spiralling energy prices and EU enlargement look set to top the agenda as Europe's leaders hold talks at the Palace of Versailles near Paris.
The two-day summit is symbolic in that it offers the bloc another chance to show its strong solidarity with Ukraine following Russia's invasion of the country.
Away from the symbolism, however, there will be a number of clear priorities. Most notably, how to boost security and energy independence in the face of Moscow's aggression.
EU leaders are also likely to discuss the possibility of further sanctions against the Kremlin, though they will be mindful of the potential harm this could do to their own economies still trying to emerge from the COVID-19 pandemic.
One EU country arguably more exposed than others to the ongoing war in Ukraine - given it shares a border with Russia - is Estonia.
Euronews' Efi Koutsokosta spoke to the country's Prime Minister Kaja Kallas.
Efi Koutsokosta, Euronews:
Prime Minister, let me get straight to the point. You're amongst some of the leaders strongly advocating greater military presence on your borders. Are you afraid that maybe you’re next if Putin succeeds in Ukraine?
Kaja Kallas, Prime Minister of Estonia:
"The correct question would be is NATO next when Putin succeeds in Ukraine? We are part of NATO, so we have Article Five in NATO that says an attack on one is an attack on all, which means that if we are attacked, then it also means that the US or France or Germany is attacked. And I think this is too big a bite even for Russia to take. So, we are not afraid, but we are preparing. We have in NATO so far, the deterrence posture. But now we have to move to the defence plan, how we really are ready to defend when or if it should be necessary."
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