I’m a bit curious why the Flags of World Countries category has a Union flag for the UK, a Scottish flag, but nothing for England, Northern Ireland, or Wales.
The union flag is actually made up from three flags: The cross of St. George for England, and the diagonal crosses of St. Andrew for Scotland, and St. Patrick for Northern Ireland. When the first flag of Great Britain was developed, Wales was already part of England, so doesn’t have it’s own cross.
Although they held a referendum for independence, Scotland hasn’t achieved independence from the UK.