Something I got derided for saying earlier in the thread but now we can see it evidenced how even in this day and age Russia still relies heavily on railways for forward logistics - one thing that has always concerned them about the UK, more even than our nuclear weapons, is our ability to rapidly logistic and fight half-way around the globe. So it has been sad to see that ability eroded by cuts over the last few years.
Yup
Railway logistics is great if you're defending your own country, especially back in the days before cruise missiles could be launched from a thousand miles away and take out multiple key bridges/junctions, but not so good to rely on in modern warfare, especially when you're the attacking force.
If anything rail is more vulnerable than road, a single well timed explosive device and you've not just got one or two trucks but the equivalent of dozens of trucks worth of equipment is stalled and requires very heavy equipment to clear.
From what I've read the Russians spend a fortune on their military railway equipment, but could probably have done well to have spent some more time looking at how other countries keep their armed forces supplied.
It strikes me almost as if they learned some of the lessons from WW1 where narrow-gauge rail was used to great effect to move supplies to near the front*, but at the same time forgot all the lessons since.
*There is a narrow gauge railway/museum type thing near me that has at least one of the engines used in WW1 and IIRC they've restored it to how it looked at that time (I think it was originally used in a sand quarry near where it is now, then in WW1, back to the quarry, sold to India then rescued from the scrap heap, I think they've also got a couple of the traction units designed for the front).