Wrong. All 36 sources name the word country or countries. Not a single one of them names the neologism "Countries of the United Kingdom". Please read the ext refs.

In line with Wikipedia's policy requiring that statements be supported by external refs, I applied the following lead:

'''Countries''' is a term used to describe the constituent parts '''of the United Kingdom''': [[England]], [[Northern Ireland]], [[Scotland]] and [[Wales]]. While ''[[country|countries]]'' is the most common term used to describe them (especially England and Scotland), they are also described as ''[[nation]]s'', ''[[constituent country|constituent countries]]'' and ''countries within a country''.[http://www.number-10.gov.uk/output/Page823.asp Number 10] [[English people|English]], [[Northern Irish people|Northern Irish]], [[Scottish people|Scottish]] and [[Welsh people|Welsh]] nationals are all entitled to [[British citizenship]]. (The [[Irish nationality law|nationality laws]] of the [[Republic of Ireland]] entitle those born in Northern Ireland also to citizenship of the Republic.)

This was immediately reverted by UKPhoenix79. Plus ça change. We cannot go around inventing new terms and presenting them as pseudo fact.