[JumpCrisscross]

> would deter Russian invasion

Does Russia still own a lot of 5-foot rolling stock? (Genuine question.) That’s what Finland is on [1].

[1] https://en.m.wikipedia.org/wiki/5_ft_and_1520_mm_gauge_railw...

[jabl]

There's enough tolerance that you can run 1520mm rolling stock on 1524mm track and vice versa.