At a certain point, both sides must meet with a mediator. Otherwise, the risk of things getting out of control become more possible.
https://news.un.org/en/story/2022/04/1116932
https://www.cnbc.com/2022/04/26/russia-ukraine-live-updates.html
https://www.aljazeera.com/news/2022/4/26/russia-ukraine-war-lavrov-warns-of-risk-of-nuclear-conflict
Ukraine war: Could Russia use tactical nuclear weapons? https://www.bbc.com/news/world-60664169
"Any conflict with a nuclear power like Russia carries the risk that nuclear weapons could be used,..."
"However, as long as NATO does not intervene directly in Ukraine and the Russian regime does not feel existentially threatened, both intentional and unintentional nuclear use remain extremely unlikely. Nevertheless, Moscow’s nuclear threats still entail significant negative consequences." https://www.swp-berlin.org/en/publication/russias-nuclear-threats-in-the-war-against-ukraine
