Scotland is a country that is part of the United Kingdom. It contains nearly one-third of the United Kingdom's land area, consisting of the northern part of the island of Great Britain and more than 790 adjacent islands, principally in the archipelagos of the Hebrides and the Northern Isles. In 2022, the country's population was about 5.4 million. Its capital city is Edinburgh, whilst Glasgow is the largest city and the most populous of the cities of Scotland. To the south-east, Scotland has its only land border with England; otherwise it is surrounded by the Atlantic Ocean to the north and west, the North Sea to the north-east and east, and the Irish Sea to the south. The legislature, the Scottish Parliament, elects 129 members to represent 73 constituencies. The Scottish Government is the executive arm of the devolved government, headed by the first minister, who chairs the cabinet and is responsible for government policy and international engagement.