A proposed EU constitutional treaty would have helped clear the existing limitations to further enlargement, but it was put on ice after Dutch and French voters rejected it in separate referendums last year, triggering one of the worst crises in the bloc's history.
Predloženi ustavni sporazum EU pomogao bi da se otklone postojeća ograničenja daljem proširenju, ali je on stavljen na led nakon što su ga holandski i francuski birači odbacili na odvojenim referendumima održanim prošle godine, izazvavši jednu od najgorih kriza u istoriji bloka.