Exactly what I'm thinking as well. It's "easy" to march your soldiers off to war when you rule in safety from the iron throne of an impregnable castle. Not so much when you face the nuclear bomb. The cognitive dissonance induced by the potential existential crisis will blow the lid off of those plans before any of the nukes have even left their bunkers.
The way I see it, nukes are the primary reason why we're currently fighting the 3rd world war though economic measures instead of outright violent acts.
