Taoiseach Micheál Martin is set to meet the British Prime Minister for their first formal meeting since his election.
Leaders are gathering for the British-Irish Council in Blackpool.
The bilateral event, is the first formal meeting between Micheál Martin and Rishi Sunak since his election, though the two chatted briefly at Cop27.
It's the first time since Gordon Brown in 2007 that a British Prime Minister has attended the council.
Rishi Sunak's attendance is being seen as a potential thawing of relations between Dublin and London, which Micheál Martin has admitted have been frayed at best.
He's expected to say he's 'determined' to restore powersharing at Stormont.
The British-Irish Council was established following the Good Friday Agreement, to build relations between Ireland, England, the devolved Governments of the UK and Guernsey, the Isle of Man and Jersey.
Brexit, the Northern Ireland Protocol, and the cost of living are expected to be high on the agenda.