"Ukraine expects effective actions to counter the nuclear blackmail of the Kremlin by Great Britain, China, the USA, and France, in particular, as permanent members of the UN Security Council, which have a special responsibility for preventing threats of aggression with the use of nuclear weapons," the statement of the Ukriane's MFA emphasizes.Ukraine called for an urgent UN Security Council meeting regarding the possible deployment of nuclear weapons in Belarus. As was reported, Putin said he would deploy tactical nuclear weapons in Belarus.
FT: Russia trained for use of nuclear weapons against Europe as early as 2008
FT refers to leaked documents. Russia has been using nuclear threats widely to restrain the West from helping Ukraine reclaim occupied lands.