I doubt this will happen. Given the length of Finland’s railways, going from Helsinki all the way to the Arctic Circle, it would be prohibitively expensive, and the money would have better uses.
If they’re fearing a Russian invasion, a more cost-effective mitigation would be the Swiss approach: preemptively mine railway lines/bridges/tunnels with explosives.
I doubt this will happen. Given the length of Finland’s railways, going from Helsinki all the way to the Arctic Circle, it would be prohibitively expensive, and the money would have better uses.
If they’re fearing a Russian invasion, a more cost-effective mitigation would be the Swiss approach: preemptively mine railway lines/bridges/tunnels with explosives.
Spain has an even longer railway net and consecutively changes the sleepers to ones allowing the change to European standard gauge as well.
Also Spains high speed rail network is standard gauge already and not Iberian gauge.