England, Scotland and Walls are on the island of Great Britain. London is the capital city of the United Kingdom and the capital of England; the population of England is 50 million. The population of Scotland is 5 million and the capital is Edinburg. In Walls the population is 3 million and the capital is Cardiff.
Northern Irland and the Republic of Irland are on the island of Irland. The capital city of Norhten Irland is Belfast and the population is 1.5 million. The Republic of Irland is in the south. The population is 4 million and the capital is Dublin. The Republic is an indipendent country. It is not in the United Kingdom.