[dragonwriter]

> There will be no serious international wars anymore.

The Russo-Ukrainian war seems pretty serious.

> The loser would go nuclear.

If annihilation was viewed better than even unconditional surrender, unconditional surrender would never have happened in the past. But it has, and thus if there is a credible marginal threat of nuclear retaliation for a nuclear strike, there is very good reason to suspect that the loser in major convential war would not go nuclear. The risk of nuclear escalation of course impacts the calculus of war involving one or more nuclear powers, but a firm statement that “the loser will go nuclear” does not seem justified, except perhaps in the case where the otherwise winning side is not, and would not (at least in the perception of the losing nuclear power) in the event of nuclear attack be protected by, a nuclear power.

> Africa doesn't count because those countries don't have nuclear bombs

The vast majority of non-African countries also don't have nuclear bombs.