Wales is a country that is not in England. It is part of the United Kingdom and the island of Great Britain. It is bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. Wales has over 1,200 km (750 mi) of coastline, and is largely mountainous, with its highest peaks in the north and central areas, including Snowdon (Yr Wyddfa), its highest summit. Above, is the flag of Wales - Y Ddraig Goch (Welsh) - The Red Dragon.
Great Britain is the official name given to the two kingdoms of England and Scotland, and the principality of Wales. The United Kingdom (UK) includes these areas as well as Northern Ireland. Britain refers to only England and Wales, though some will shorten Great Britain with this term.
Y Ddraig Goch (Welsh Dragon). The Romans used the dragon as one of their symbols of power. Into battle they would carry a metal head of a dragon in which they would light a fire. This would burn fiercely in the wind and seems to be where all the legends of fire breathing dragons come from. When the Romans left Britain it seems that the dragon was adopted by others as their symbol of power. Hence the Welsh Dragon of today.