It doesn't sound right to suggest there are criteria for using nukes. The only thing that needs to happen is someone with them decides to use them and does.
>Dmitry Medvedev, a former Russian president, who now serves as deputy chairman of the country's security council, outlined four ways that Russia could be "entitled to" use its nuclear arsenal—even against a nation that is only using conventional weapons.
>Number one is the situation, when Russia is struck by a nuclear missile.
The second case is any use of other nuclear weapons against Russia or its allies," Medvedev said Saturday, according to The Guardian.
"The third is an attack on a critical infrastructure that will have paralyzed our nuclear deterrent forces.
And the fourth case is when an act of aggression is committed against Russia and its allies, which jeopardized the existence of the country itself, even without the use of nuclear weapons, that is, with the use of conventional weapons."
I don't doubt they have outlined when they will use them, I doubt that I trust humans to always follow a plan. Humans sometimes behave unpredictably, or even irrationally.
>Number one is the situation, when Russia is struck by a nuclear missile. The second case is any use of other nuclear weapons against Russia or its allies," Medvedev said Saturday, according to The Guardian. "The third is an attack on a critical infrastructure that will have paralyzed our nuclear deterrent forces. And the fourth case is when an act of aggression is committed against Russia and its allies, which jeopardized the existence of the country itself, even without the use of nuclear weapons, that is, with the use of conventional weapons."
https://www.newsweek.com/russia-lists-justifications-use-nuc...