I don't think the people terrible enough to launch nukes all other the place are in the position to do that. If the last 70 years are any indication, people don't tend to nuke other people.
There are nukes in Pakistan, India, Israel, Russia, other former Soviet countries, China, and US, all under increasingly fascistic rule. The orange baboon has publicly entertained using them just for dramatic effect. What do you imagine will restrain them as tensions resulting from mass migration, collapsing harvests, and desertification continue to grow?