Original: In the United Kingdom the two-stage Channel Tunnel Rail Link project was completed on 14 November 2007 and renamed High Speed 1 , when the London terminus of Eurostar transferred from Waterloo International to St Pancras International .
Simplified: The two-stage Channel Tunnel Rail Link project was completed on 14 November 2007 , when the London terminus of Eurostar transferred from Waterloo International to St Pancras International station .