Following Croatia’s accession to the EU in 2013, the phrase ‘enlargement fatigue’ became common place and the enlargement to the Western Balkans was slow and tortuous. The Russian invasion of Ukraine has altered the dynamic of enlargement. Ukraine followed by Moldova and Gorgia applied for membership of the Union. President Zelensky wants ‘fast track’ membership. At Versailles, EU leaders acknowledged that Ukraine is part of the ‘European family’’ and requested the Commission to prepare an Opinion on Ukraine’s membership. There is considerable debate on what this means for processes and procedures surrounding enlargement. Will the existing enlargement system remain in place or will the EU have to reassess the fundamentals of the enlargement process itself.