During the Second World War, on both sides of the border there were preparations for the possible detonation of the tunnels.
The explosives attached to the tunnel on the Swiss section were not removed until 2001.
In Italy, the German army planned, as part of its 1945 withdrawal, to blow up the tunnel, but were thwarted by Italian partisans with the help of two Swiss officials and Austrian deserters.
During the Second World War, on both sides of the border there were preparations for the possible detonation of the tunnels. The explosives attached to the tunnel on the Swiss section were not removed until 2001. In Italy, the German army planned, as part of its 1945 withdrawal, to blow up the tunnel, but were thwarted by Italian partisans with the help of two Swiss officials and Austrian deserters.
Simplon Tunnel