According to article Russians placed some units and even build an pontoon bridge inside an exclusion radiation Zone in Chernobyl on Belarusian side. This place has two advantages in case of aggression on Ukraine. Is empty of any civilians and secondly is a shortest route to Kiev from Belorussia. But this zone is closed for a reason any fights there have threat for fighting soldiers because some radioactive particles are still there inside ground and fighting with especially of use of any artillery my case that this radioactive dust my be again in the air and threat soldiers. I can't even imagine what may happens if places like Red Forest will be shelled
https://en.wikipedia.org/wiki/Red_Forest or Graveyards of equipment. In recent years even an Forest fires were a great threat that radioactivity my go with winds to air and to distant places. Secondly not so long time ago new sarcophagus was build and if something happens there to the reactors because fighting around we may have a nuclear catastrophe. Ukrainians also preparing themself to fighting inside Prypiat so in case of war we may have here a battle on nuclear battlefield first time in history of humanity what is a threat for every one of us if fights became too intensive and too much dust will go with winds.
https://defence-blog.com/russian-mil...xclusion-zone/
https://defence-blog.com/with-exerci...ltiple-fronts/