Wales are scheduled to play England and Ireland twice next year as a part of their preparations for the 2019 World Cup in Japan.
The preparations will begin with back to back clashes against the red rose team on 11th and 17th August at Twickenham Stadium and at the Principality Stadium respectively.
Warren Gatland's side will then host Ireland in Cardiff on 31st August before rounding up their preparations in Dublin where they face Joe Schmidt's side once again on 7th September.
"I'm delighted with the fixture schedule we have put together for next summer," said Gatland.
"We have put together a detailed plan of preparation leading into the tournament and these fixtures are an extremely important part of that.
"It is important we test ourselves in competitive environments before heading to Japan and these matches are ideal for us and I'm delighted to have secured back-to-back fixtures against both England and Ireland.
"The home matches especially are also a great opportunity for us to play in front of our supporters and for them to see us in action before we head to Japan."
Wales are grouped in Pool D alongside Australia, Georgia, Fiji and Uruguay and will play their World Cup fixtures in Toyota, Chofu, Oita and Kumamoto.