THREE SOLUTIONS TO THE INVASION PROBLEM
How to have a tunnel and still keep England safe from invasion
is a problem that has attracted the attention of artists since the eighties.
The Illustrated London News, 1882, shows how, at the first sign of invasion, the tunnel
could be bombarded from the Admiralty Pier at Dover, from the Dover fortifications,
and from positions offshore.
Viaduct for the French tunnel entrance proposed in 1906. At signs of French intentions to
invade, the British fleet would sail up and blow this viaduct to smithereens, thus blocking
the tunnel from the French end.
David Langdon in Paris Match, 1960, suggests another way of handling the invasion problem.