This was deisgned to operate with both the UK and the Irish Republic in the EU
As is being widely there is a huge impasse between London and Brussels over the position of Northern Ireland. The real problem is that that the basic premise of the deal that brought peace to Northern Ireland in 1998 was that both countries would remain within the EU.
I have referred here to an article written a couple of years ago by John McTernan, Tony Blair’s former director of political operations, which sought to set out clearly why the Northern Ireland border has been such an issue in the Brexit negotiations. He wrote:
“.. there is no concession that can be given on the backstop or, as it should properly be considered, Northern Ireland. The fundamental problem here is not the intransigence of the Irish government not the trickery of the European Union. It is, put bluntly, because the UK is bound by a peace treaty – the Good Friday Agreement – which ended the 30 years warfare of the Troubles.
The agreement saved lives, and is still saving them, and it dealt with the border – the source of the conflict – in an extraordinary act of imagination. It dissolved it. Not merely within the operation of the EU Single Market but by the UK government repealing the act that partitioned the island of Ireland and by agreeing that the people of Northern Ireland could choose either a British or an Irish passport..”
No amount of clever wording can get around this – Brexit is incompatible with the GFA.
An issue for the UK government is the involvement at the time of the US government in making this happen. Biden has already made his views known.
Quite where this goes from here is hard to say. BoJo is a prisoner of history.