Unfortunately, humans on Earth will probably experience a major (global) nuclear war soon (anytime before 2060).
So what is the probability of winning a nuclear war against a nuclear-armed enemy?
Can we (humans) survive the nuclear fallout or the nuclear winter or the aftermath of a major nuclear war?
Relevant Reference Links:
'Nuclear Warfare',
https://en.wikipedia.org/wiki/Nuclear_warfare;
'Nuclear Fallout',
https://en.wikipedia.org/wiki/Nuclear_fallout#:~:text=Nuclear%20fallout%20is%20the%20residual,when%20a%20nuclear%20weapon%20explodes..