All Ireland has to do is offer the North and Scotland states' rights within a federal structure. They would be entitled to retain intact and entire their existing devolved systems of government until such time as they chose to modify them or until such time as they chose to leave this Celtic Federation. The only inescapable changes would be these:
- acceptance of the euro
- acceptance of Dublin as responsible for their (non-nuclear) defence
- they would have to give up on allegiance to the Queen though their local flags need not change
Over to you Ireland to make the first moves ...