On 29 March 2017, Theresa MAY, British Prime Minister, triggered Article 50 of the Lisbon Treaty.
The right of a Member State to withdraw from the European Union was introduced for the first time with the Lisbon Treaty; the possibility of withdrawal was highly controversial before that. The Article 50 provides for the negotiation of a withdrawal agreement between the EU and the withdrawing state, defining in particular the latter's future relationship with the Union. If no agreement is concluded within two years, that state's membership ends automatically, unless the European Council and the Member State concerned decide jointly to extend this period.
MEPs will debate and vote on the state of play of the UK’s withdrawal from the EU in presence of Michel BARNIER
In plenary session, in Strasbourg, MEPs discuss the outcome of the special meeting of the European Council on Article 50 which took place in Brussels on 10 April 2019.