The Eurostar train was the first truly international service operating out of Great Britain. Although much earlier services such as The Norseman had been designed to put passengers on direct connections to other countries, and boat trains had passed carriages between countries, Britain's island status had until the 1990s precluded a integral, truly international service. The introduction of the Channel Tunnel enabled the operation of direct, non-stop services between London, Paris and Brussels, and further destinations are planned. The trains are high-speed electric multiple units, similar to the French TGV, and painted in a distinctive navy blue and yellow livery.

Waterloo International
             \
              \
               \
         Ashford International
                 \
                  \                                              Bruxelles Midi
                   \--}---------{---Calais Fréthun----\             /
                                                       \           /
                                                        \--Lille--/
                                                               \
                                                                \
                                                                 \
                                                             Paris Gare du Nord
Interchange to UK internal services at Waterloo and Ashford; to London Underground Northern, Jubilee, Waterloo and City and Bakerloo Lines at Waterloo, to French internal services at Calais, Lille and Gare du Nord; to the Paris Metro at Gare du Nord; and to Belgian internal and metro services at Midi.