Uefa Women's Euro play-off final, second leg: Republic of Ireland v Wales
Venue: Aviva Stadium, Dublin Date: Tuesday, 3 December Kick-off: 19:30 GMT
Coverage: Live on BBC One Wales, iPlayer, BBC Radio Wales and Radio Cymru, the BBC Sport website and app, plus live text commentary
Highlights: S4C, 22:00 and later on demand
Captain Angharad James says Wales are ready for "the biggest game of their lives".
Wales' women have never reached a major tournament but will do so if they can beat the Republic of Ireland at Aviva Stadium in Dublin.
After a 1-1 draw in the first leg in Cardiff where there was little to separate the two nations, 90 minutes now stands between Wales and a historic first appearance at a European Championship.
The Republic of Ireland, who competed at the last World Cup, are also bidding for a first Euros berth in Switzerland next summer.
James says Wales are embracing the chance to make history and says she is confident they can get the win they need.
"To play in a stadium as beautiful as this, with a crowd of 25,000, these are the games that as a little kid you dream of and to do it for Wales is special," said James.
"I think this is probably the biggest game we have all played in. It is a huge moment for Welsh football and a huge moment for this group.
"As a group we have made sure we are focused on the task ahead and it is just another game.
"We represent Wales with such pride and passion and hopefully you can see that in our performance.
"If we execute our gameplan I have every confidence we will get the result tomorrow."
Wales boss Rhian Wilkinson only took over as national team coach in February and now finds herself within a game of making Welsh footballing history.
The former Canadia defender says she would definitely have taken this scenario at the start of the year, with Wales essentially in a cup final for qualification.
"At the start of the year would I have taken this outcome? Yes," she told BBC Sport Wales.
"We have talked about it as a group. The qualification format is long and thorough.
"To have two equal teams, to have that opportunity in two wonderful stadiums, what a moment.
"Yes, I would absolutely have taken that.
"But whatever happens tomorrow, I have never been prouder of a group of people."
Wilkinson says Wales are not daunted by the prospect of playing in front of a partisan crowd of 25,000, with only 400 Wales fans expected to make the trip.
The Wales boss is hoping that the large crowd could end up playing into Wales' hands.
"The players will have heightened nerves, as will the staff - that is human nature," she said.
"It is beholden of the coach of the home nation to talk about the massive advantage of a huge crowd, but equally it brings a pressure. Pressure does something to everyone.
"We are excited to be here at a fabulous stadium."
After an extremely cagey first leg where both teams produced five efforts on goal apiece, the prospect of extra time and penalties looms over the tie.
Both managers say their players have been practicing penalties.
"It is as it is in any camp, in every camp we always practice penalties. We are prepared. There should be no panic about it. We know in every way it will be a battle," Wilkinson added.
"We have prepared for more than 90 minutes and potentially the eventuality of penalties."
The Republic of Ireland boss Eileen Gleeson also says she has prepared her players for a potential penalty shootout.
"We have planned ahead and gone through that process," Gleeson said.
Wales have only experienced heartache in major tournament play-offs, having lost out on a place in the last World Cup with a last-gasp 2-1 defeat by Switzerland.
Ireland, conversely, reached the World Cup after a play-off win over Scotland and captain Katie McCabe believes her side should take a lot from that experience.
"We have been in this position before," she said.
"It gives us experience and that kind of calming mentality throughout the squad.
"The leaders of the group can share that experience with the rest of the group. We are absolutely together and we know the magnitude of the game."
The Republic of Ireland are without Manchester United defender Aoife Mannion who left the squad earlier in the camp with a muscular injury.
Louise Quinn, Ellen Molloy, Lucy Quinn, Jamie Finn and Jess Ziu are also unavailable but the hosts have suffered no further injury issues since the start of camp.
Wales boss Rhian Wilkinson said in her pre-match media conference that she has "a full squad to choose from", with Wales suffering no injury issues in Friday’s match at Cardiff City Stadium.
Former captain Sophie Ingle is unavailable because of knee surgery, but she travelled with the side to Dublin and will be in attendance at Aviva Stadium.
Forward Elise Hughes is also ruled out long-term for the visitors after knee surgery.