Question: is great britain part of the european union

Answer: Yes, Brexit (/ˈbrɛksɪt, ˈbrɛɡzɪt/) is the impending withdrawal of the United Kingdom (UK) from the European Union (EU). In a referendum on 23 June 2016, 51.9% of the participating UK electorate voted to leave the EU; the turnout was 72.2%. On 29 March 2017, the UK government invoked Article 50 of the Treaty on European Union. The European Union (Withdrawal) Act 2018 declares ``exit day'' to be 29 March 2019 at 11 pm UTC.