How many leaders will want to see joint loans or a common debt, which goes far beyond the proposal presented so far by the President of the EU Commission, Ursula von der Leyen.
As a high-ranking EU official expressed it to The Guardian: "Is this (the von der Leyen package) the end of the story? No, I don't think so."
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What EU leaders think about Emmanuel Macron's proposal to extend France's nuclear umbrella to other European countries.
In his speech to the nation on Wednesday, the French President again opened up the possibility of protecting other EU countries with France's nuclear weapons.
Germany's future Chancellor Friedrich Merz is also in Brussels to meet other key players, but will not participate in the summit negotiations, according to The Guardian.
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Support for Ukraine.
When the President of the European Council, António Costa, called for the summit, he promised that decisions would be made "about our support for Ukraine”.
However, ahead of the summit, EU officials have toned down hints that a military support package for Ukraine for 2025 would be presented, as proposed by the EU's Foreign Minister Kaja Kallas.
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If Viktor Orbán digs in his heels.
Hungary is already threatening to veto the conclusions on Ukraine that are to form the basis of a fixed EU stance. Even Sweden's Prime Minister Ulf Kristersson says he is not optimistic about Hungary and Viktor Orbán – one of Vladimir Putin's closest allies in Europe.
As everyone knows, we have broad agreement in the EU, but not sufficient agreement as long as Hungary blocks continued support to Ukraine, said the M leader in an interview on P1-morning ahead of today's summit.
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How the EU's role in security guarantees for Ukraine can look.
During the summit, EU leaders are expected to discuss what role the union can play – if any.
In theory, it could involve financial measures or a peacekeeping mission led by the EU. So far, only France and the UK have said they are ready to send soldiers to monitor a potential ceasefire in Ukraine.
