The United Kingdom includes England.
England is a country that is part of the United Kingdom . The Greater Manchester Built-up Area is an area of land defined by the Office for National Statistics ( ONS ) , consisting of the large conurbation that encompasses the urban element of the city of Manchester and the continuous metropolitan area that spreads outwards from it , forming much of Greater Manchester in North West England . The Liverpool Urban Area is a term used by the Office for National Statistics ( ONS ) to denote the urban area around Liverpool in England , to the east of the River Mersey . United Kingdom . A treaty between England and Scotland resulted in 1707 in a unified Kingdom of Great Britain , which merged in 1801 with the Kingdom of Ireland to form the United Kingdom of Great Britain and Ireland .