The United Kingdom (UK) is a sovereign state in Europe. The UK is the 78th-largest sovereign state in the world and the 11th-largest in Europe. It is also the 21st-most populous country, with an estimated 65.1 million inhabitants. Together, this makes it the fourth most densely populated country in the European Union. The UK consists of four countries: England, Scotland, Wales, and Northern Ireland. Its capital and largest city is London, a global city and financial centre with an urban population of 10,310,000, the fourth-largest in Europe and second-largest in the European Union. The UK remains a great power with considerable economic, cultural, military, scientific, and political influence internationally.