Wales vs Andorra: Time to end 50 years of hurt?
Wales start their Euro 2016 campaign in Andorra on Tuesday night confident that they challenge group favourites Belgium and Bosnia-Herzegovina for the automatic two qualifying spots on offer.
The stardust sprinkled by Gareth Bale and Aaron Ramsey is the envy of bigger nations, but Williams feels collective strength and togetherness will be just as important as Wales seek to reach their first major tournament since the 1958 World Cup finals.
Read more: Interview with Gareth Bale - "Wales can get to Euro 2016"
Swansea skipper Williams admits it "would be the biggest achievement in my career" if Wales qualified for the expanded 24-team European Championship in France in two years' time and they could not have asked for a kinder start high in the Pyrenees.
Andorra have lost their last 44 competitive games since a goalless draw against Finland nine years ago and have failed to score in 18 competitive matches.
"We know about their records and history and understand what type of game this is," Williams said. "But it's not something that we're concentrating on.
The build-up to the game has been dominated by the controversial surface at the newly-built National Stadium in Andorra la Vella. The artificial 3G surface was only passed fit for use by UEFA last Wednesday after original tests showed the ball was rolling too fast.
Andorra coach Koldo Alvarez admits he is fearful of Wales' attacking strength with more than just Real Madrid star Bale to worry about.
"They have very dangerous players so we have to approach it as a team.We're talking about a lot of players in the Premier League and one of the best players in the world, so the problem for Andorra is that Wales have got one of their best teams and think that they can qualify."