11/10/2015 6:29 AM AEDT | Updated 15/07/2016 12:50 PM AEST

Rugby World Cup: Australia Go Through To Quarter Finals Undefeated

MARTIN BUREAU via Getty Images
Australia's hooker Stephen Moore (L) celebrates with Australia's hooker Tatafu Polota-Nau (R) after winning a Pool A match of the 2015 Rugby World Cup between Wales and Australia at Twickenham Stadium, southwest London, on October 10, 2015.AFP PHOTO / MARTIN BUREAURESTRICTED TO EDITORIAL USE, NO USE IN LIVE MATCH TRACKING SERVICES, TO BE USED AS NON-SEQUENTIAL STILLS (Photo credit should read MARTIN BUREAU/AFP/Getty Images)

Australia has defeated Wales 15-6 in the final group game to secure top spot in Pool A.

In a game which will go down in Rugby World Cup annals as one of the best exhibitions of defensive play, Australia held fast in a period when it had two players, Will Genia and Dean Mumm, in the sin bin with yellow cards.

The opportunities created in attack by the Wallabies were capitalised on by Bernard Foley and his accurate kicking, adding five penalty goals to the scoreboard in a game which saw no tries scored, but was anything but boring.

The defence from the Australians was depicted well on social media.

In the earlier game, Scotland defeated Samoa in a tight contest to secure second spot in Pool B and will now meet Australia in the quarter finals.

The World Cup now becomes a tournament of two halves. Although there are still final Pool matches left to play this weekend, the finals series has a vibe all its own with the remaining eight teams regrouping and preparing for battles which will see an increase in the intensity and level of performance required.

The quarter finals will also see the old battle of north versus south come into play in what should be a mouth-watering stage of the tournament.