If putin did use a tactical nuke and nato were to go into Ukraine…how would they avoid devastating Ukrainians even further as collateral damage?
Fair question.
I don't think NATO would be looking a carpet bombing whole areas of Russian occupied Ukraine, they don't need to.
With all the intelligence gathering that's been going on (some of it visible on the aviation tracker sites such as aircraft and drones), and continues to go on in real time for six months plus by now NATO/US hopefully the location of every site of importance to the Russian military in that part of the world will be known the the Allies...we're talking about their missile sites, radar sites, comms hubs, military HQs, major logistics hubs, tank parks, major troop marshalling areas, Fuel/Oil installations..
Each one will no doubt have been assigned at least one weapon designed package to be delivered very precisely by suitable means. Hopefully the weapon will have destructive effect commensurate with the target type.
The effect of a heck of a lot that on the whole Russian Army in the conflict and the politicians back in Moscow...???
The health warning that goes with this is that despite best intentions sometimes these supposedly smart weapons don't work as advertised and there is bound to be some collateral damage, but I don't think for one minute the NATO plan would be to flatten the whole of Eastern Ukraine.