It will be the first time in our history we've achieved this if the boys in green win.
For the first time in history, the Republic of Ireland can qualify for a tournament tonight, with a game to spare.
Mick McCarthy's side take on Switzerland in Geneva from 7.45.
The Boys in Green are top of Group D, level on points with Denmark, heading into the tie.
A win would be enough to seal their place at next summer's finals.
Captain Seamus Coleman though says that tonight will be a tough test.
Enda Stevens is set to return at left-back with Matt Doherty expected to drop to the bench.
Teenage striker Aaron Connolly could be handed a start up front, having earned his first cap in last weekend's draw at Georgia.