What are the countries that have left the EU?

The countries that have left the EU are Britain. As an island country, Britain has long adhered to "glorious independence" and is in Europe, but it does not feel that it belongs to Europe. With Britain's growing doubts about Europe and Britain's withdrawal from the EU, Britain finally held a referendum to withdraw from the EU, and only Britain withdrew from the EU. Europe, the full name of "Europa", is named after the Greek mythical figure "Europa". Europe is located in the northwest of the old hemisphere, bordering the Arctic Ocean in the north, the Atlantic Ocean in the west, the Mediterranean Sea and the Black Sea in the south. The mainland lies to the east of the polar Urals. Europe is the sixth largest continent in the world and the third most populous continent in the world, second only to Asia and Africa. More than 99% of the population belongs to white people, which is relatively single.