Watch: EU enlargement: Twenty years on (ARTE)
The European Union is a supranational political and economic union of 27 member states
On May 1, 2004, the European Union welcomed 10 new members, including 8 countries from central and eastern Europe. This massive enlargement changed overnight the dynamics of the EU. Twenty years on, how has this enlargement in the east shaped the new member states and the EU as a whole?