More than 60,000 people are expected at the Millennium Stadium tomorrow morning, to view a big screen viewing of Wales' semi-final clash against France.
"It is a big undertaking for people and it shows the support for us," Charteris said. "Knowing all the effort our supporters are making and the excitement back home, it is an extra incentive for us to reach the final. It's the least we can do."
Charteris is now braced for a stern examination from France, whose recent record against Wales shows nine wins in 11 starts.
"We have to get parity or win the battle up front," he said. "Do that and we have seen what our backs can do. We will find out on Saturday whether we have got it right. We are always working on new things.
"We have the philosophy that if we do our jobs spot-on, we will do well. If we get our processes right, we are confident we are going to get the right result."
If you can't make the game for whatever reason, don't panic. As you will be able to follow it right here. Simply CLICK HERE just before kick-off and we'll guide you through every single minute of the action.