List the countries that are a part of UK.
The��United Kingdom of Great Britain and Northern Ireland, commonly known as the��United Kingdom��(UK) or��Britain,��is a��country��in��Europe, off the north-western coast of the��continental mainland.��It comprises��England,��Scotland,��Wales��and��Northern Ireland.��The United Kingdom includes the island of��Great Britain, the north-eastern part of the island of��Ireland, and many��smaller islands��within the��British Isles.��Northern Ireland shares��a land border��with the��Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the��North Sea, the��English Channel, the��Celtic Sea��and the��Irish Sea. The total area of the United Kingdom is 242,495 square kilometres (93,628��sq��mi), with an estimated 2023 population of over 68 million people.
England,��Scotland,��Wales��and��Northern Ireland.