"The UK" is short foe "the United Kingdom of Great Britain and Northern Ireland" - and will cease to exist if the Scots go for independence. There will be two successor states, the already existing, but now independent historic country of Scotland, and a totally new country which has never existed before made of the England, Scotland and Northern Ireland.

If Scotland has make a fresh application to join NATO, the EU and the United Nations, why is it assumed that won't apply to the United Kingdom of Southern Britain and Northern Ireland?