Yes. Ukraine is not an isolated data point. There is a recent history of Russia attacking its different neighbors, which would make me bet that the future will be similar.
It's not merely "What to do about Crimea?" but also "Who is next (and what to do about them while we can, while the Russian army is not there yet)?". If my country had borders with Russia, I would consider fortifying those borders a #1 national priority. I would probably destroy as much roads and railways across the border as would be economically possible. But that's only passive defense.
I would probably destroy as much roads and railways across the border as would be economically possible.
I don't think this helps all that much (tanks can travel over rough terrain) and has high economic costs. Better to mine the infrastructure, and detonate the mines when a train carrying enemy soldiers passes over it.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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