[journey_16162]

I don't think that looking for shelters or martial law being imposed is a realistic concern. If Russia drops a nuke, it would most likely be in Ukraine and a tactical one on the front-line or some military infrastructure. Imposing a martial law would not go without economic costs, in already tough times. Has any country but Ukraine imposed a martial law when Russia attacked it, despite the fear of being the next target? The worst case scenario where you would need to look for shelters, I don't think it would apply to just that geographical area.

[viraptor]

There is no frame of reference here to other Russian attack. This would be unprecedented and it could either be nothing for the neighbours or it could spiral out of control very quickly. And the situation depends on how close to the border+airport is OP going to be.