EU Commission rejects UK’s new legislation and launches legal action against Britain.

So what is the ECJ, what is its role in the protocol and what are the possible alternatives?

The renewed tension in Northern Ireland could have far-reaching implications for the future of the United Kingdom - and post-Brexit relations with the EU.

The European Union has promised legal action after the British government unilaterally extended a grace period for checks on food imports to Northern Ireland, a move that Brussels said breached the terms of London’s EU divorce deal.

On 29 March Theresa May sent a six-page letter notifying the EU of the UK's intention to leave. The Article 50 letter contained a clause little discussed at the time - notifying the EU of the UK's withdrawal from the European Atomic Energy Community, also known as Euratom.