Ireland will face Wales, England, and Georgia in the upcoming eight-team Autumn Nations Cup in November and December.
Andy Farrell's side will kick off their Group A campaign in the new competition by hosting Wales at the Aviva Stadium on Friday, November 13th.
They'll then travel to Twickenham to take on England on Saturday the 21st before welcoming Georgia to the Aviva Sunday, November 29th.
The final weekend of playoffs on the weekend of December 6th will be determined by pool position, where each team will face off against the team ranked in their same position in the opposite pool.
France, Scotland, Italy and Georgia will complete in Pool B.
Organisers say that broadcast arrangements "will be announced in due course".
“We are absolutely delighted to formally announce details of the Autumn Nations Cup,” Six Nations CEO Ben Morel said.
“A significant amount of time and effort has gone into delivering this new tournament format in testing circumstances and the spirit of collaboration amongst key stakeholders has been outstanding.
“While the challenges presented by the COVID-19 pandemic made the traditional Autumn Test window unfeasible, we remained determined to deliver a unique and compelling tournament proposition which would ensure world class rugby for our fans globally, and competitive matches for players, unions and federations.
“We cannot wait for the tournament to get underway in November and fans can look forward to some outstanding matches featuring some of the greatest players in the world.
“We are especially pleased to be joined by Fiji and Georgia and expect them both to be tremendous additions to the competition.”
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