The EU will grow in size to 25 countries this spring, but it doesn't necessarily follow that bigger means stronger. How much more weight will the union of 25 have in international affairs? Will the relative poverty of newcomer nations undermine the economic power of the EU?

Will the EU's expansion alter its external relations and security policy priorities? And how will a larger and perhaps more assertive EU be seen in Washington?

Featuring :

• Péter Balázs, Ambassador, Mission of Hungary to the EU and candidate Commissioner nominated by Hungary.
  
• Matthew Baldwin, Deputy Head of Cabinet, Responsible for External Trade, Customs union & External Relations, DG Trade
  
• Enrique Barón Crespo MEP and President of the Socialist Group in the European Parliament