A former prime minister the United Kingdom, Gordon Brown, has warned that the union England, Scotland, Wales and Northern Ireland is "sleepwalking oblivion". He also warned a serious economic disaster after the UK leaves the European Union. He wrote the dangers of the UK leaving the EU after Brexit. The UK will leave the European Union October 31st (which is also Halloween). Mr Brown believes that if the UK leaves the EU a deal, the four nations of the UK could be trouble. He is blaming nationalist thinking. He said many people each country want their independence. He said the United Kingdom is no longer a totally united kingdom.
The United Kingdom consists four countries - the three nations Great Britain (England, Scotland and Wales) and the fourth being Northern Ireland. The full title all four countries is "The United Kingdom of Great Britain and Northern Ireland". Gordon Brown believes that Brexit has made people each country want independence. Most people in Scotland voted Brexit. They want to stay the EU. There are talks a vote for independence for Scotland. There are also worries a possible physical border Northern Ireland and the Republic of Ireland. People are talking a possible reunited Ireland. Mr Brown said: "We must recognize that nationalism is now driving British politics."