Learn about the Treaty of Lisbon – informative material of the Office of the Committee for European Integration
The Treaty of Lisbon
– the Treaty of United Europe
The rejection of the Constitutional Treaty in referendums in France and the Netherlands (2005) resulted in the fact that the European Union faced the necessity to prepare and accept a new document which would reorganise its structures and enable the Union to function effectively. The Treaty of Lisbon, also called the Reform Treaty, became the answer to the changing conditions in which the European Union functions. Compromise assumptions of this document, fundamental for the future of the Community, were accepted during the summit of the European Council in Brussels on 21-22 June 2007. The work on the new treaty was conducted during the Intergovernmental Conference in Lisbon, which started on 23 June 2007. The final shape of the document was agreed upon by heads of states and governments of the Community at the Summit of the European Union in Lisbon 18-19 October 2007. The new treaty – the Treaty of Lisbon amending the Treaty on the European Union and the Treaty establishing the European Community was signed by representatives of the European Union’s member states in Lisbon in the Hieronymites Monastery on 13 December 2007. The Reforming Treaty entered into force after long and exceptionally difficult ratification on 1 December 2009 r. The aim of the document is to improve the efficiency of the European Union’s operation and in consequence to increase its international importance. When the Treaty of Lisbon entered into force the European Union became a legal entity.