IRELAND playmaker Denise O'Sullivan clipped in the third goal in a resounding 3-0 victory away to Montenegro on Wednesday afternoon.
Diane Caldwell, match-winner last week against Greece, and Katie McCabe were the other scorers.
Northsider O'Sullivan, rated as one of the best midfielders in women's soccer, once again lived up to her billing as Ireland took a major step towards European qualification.
Another Rebel, Clare Shine also featured, though Megan Connolly is currently marked absent through injury.
The win leaves them top of the group, albeit having played a game more, before they face the highly-rated Germans in the next tie.
Three of the best runners-up will automatically qualify for the 2021 tournament, with the others going into a play-off. Ireland, even if they can't get the better of the Germans, are now in a strong position to make the Euros.
The match in Petrovac was behind closed doors due to the coronavirus outbreak.