The EU needs common interests to prevail over national ones to avoid weakening as a geopolitical actor.
A pivotal summit will determine usage of immobilized Russian assets to aid Ukraine and an economic agreement with Mercosur.
The relinquishment of the USA forces European leaders to strive for further European integration.
Spain has been displaced to a secondary position within the EU.
The agreement with Mercosur, which potentially could create the world's largest free trade area, is at risk due to divisions among EU partners.
Conclusion: The challenges underscore the pivotal necessity to prioritize common interests over national ones within the EU to ensure its sustainability and strength as a geopolitical actor.