Early in the war there have been discussions about this and the rumblings were that Russia wanted to use tactical nukes on the battlefield, but China said "no".

Early in the war there have been discussions about this and the rumblings were that Russia wanted to use tactical nukes on the battlefield, but China said "no". https://www.newsweek.com/china-news-reacts-after-russia-changes-nuclear-war-policy-ukraine-1947545 https://www.newsweek.com/china-news-reacts-after-russia-chan... Apparently they still regularly do: https://www.politico.eu/article/volodymyr-zelenskyy-china-urged-vladimir-putin-not-use-nuclear-weapons-in-ukraine/ https://www.politico.eu/article/volodymyr-zelenskyy-china-ur... I am happy that some cooler heads prevail.