A nuclear deterrent is still a deterrent, no matter how small. No country (hopefully) wants to risk any kind of nuclear war. Ukraine would never have been invaded if it still had its nukes.
We cannot know. My best guess is that at some point in the future there will be a military conflict between two parties that have nukes. Pakistan vs India for instance. And although they have nukes they would fight conventionally unless one party is about to lose.
etyhhgfff|1 month ago
JohnFen|1 month ago
In every war, eventually, one side will be about to lose.