CARDIFF: Political leaders from Scotland, Wales and Northern Ireland have signed a declaration asserting their nations’ right to self-determination and calling on the British government to prepare for possible constitutional change.
Scotland’s John Swinney, Wales’s Rhun ap Iorwerth and Northern Ireland’s Michelle O’Neill signed the document on September 14 as representatives of their respective parties rather than in their official capacities as heads of devolved governments.
The declaration argues that the existing Westminster-centred constitutional order is “coming to an end” and says each nation should determine its future “in its own way and in its own time”.
Leaders Pursue Different Constitutional Objectives
The three parties have distinct political goals. Swinney’s Scottish National Party supports Scottish independence, Plaid Cymru advocates Welsh independence, while O’Neill’s Sinn Féin seeks Irish reunification rather than an independent Northern Ireland.
Furthermore, the declaration says the three nations see their future within the European Union.
However, constitutional experts cautioned against interpreting the agreement as evidence of an imminent UK breakup.
Cardiff University professor Laura McAllister described the meeting as significant because nationalist parties simultaneously lead all three devolved administrations, while University of Edinburgh professor James Mitchell argued that the declaration does not itself alter constitutional arrangements.
Analysts See Major Obstacles to UK Breakup
Northern Ireland remains constitutionally distinct because the 1998 Belfast Agreement provides a framework under which its status can change through democratic consent.
Meanwhile, analysts noted that Scotland and Wales would face separate political, economic and legal questions if they pursued independence, including future relations with England and potential EU membership.
Chatham House associate fellow Timothy Ash assessed the probability of UK disintegration as low, while Mitchell said any eventual breakup would require extensive successor agreements.
Consequently, the Cardiff declaration represents a coordinated political statement on self-determination rather than an immediate constitutional change to the United Kingdom.
