I thought I will write a brief note to clarify the name UK or United Kingdom following some of my overseas family members started saying how well England are doing in the Rio2016 Olympics. We have had to explain that England is part of the United Kingdom and the whole UK as a country is representing in the biggest sporting fixture in the world.
United Kingdom is made up of four countries and often refereed as UK or GB (Great Britain). The four countries are England, Wales, Scotland and Northern Ireland as one kingdom hence United Kingdom – refer to the image for the location of each country in the map. It is a sovereign state in Europe with monarchy as the ceremonial head with parliament governing the country.
During the Rio2016 Olympics they are referred to as Team GB as opposed to United Kingdom or UK although they represent the entire united kingdom. Hope this briefly explains why it is called United Kingdom.