War in Ukraine: the return of military nuclear proliferation?

While the issue of nuclear weapons has never really gone away (and for good reason, their mere existence is in itself problematic), the question of their use hasn't been discussed so head-on for a long time. Through Russia's threatening announcements and the West's more discreet responses, the burning question of mutual destruction and the end of humanity has once again become concrete. Rejoicing.

Not since the Cuban missile crisis in 1962 has Russia's war against Ukraine been conducted in a nuclear atmosphere. As soon as the invasion began on February 24, President Putin reminded the world that his country possesses nuclear weapons. And plenty of it. A few days later, the Kremlin's strike force was reiterated, and a new threat was made: Russia's nuclear forces went on alert. The same