yeah but they show that its peace and rebuilding, it might turn into basically world war 1 / napoleonic war with aspirations of future combat methods. New imperial goverments that want to claim places that are not irradiated. I.e. a real reason to actually invade south America or Africa. Might be 50 years of propaganda, new colonialism, etc
Like how many miserable people do you need before the country decides its a good idea to do something we cant imagine. Like 10 years later : we are seeing alot of birth defects and diseases we did not anticipate here, so its us or them. Then you start getting some 1200's greasy shit going on. Like its somewhat peaceful now (globally) because people generally can at least tolerate staying within 200 miles of where they are in most cases).
Looters will be shot on sight is kids stuff, how about 'we are preparing for an offensive from ____". Like if there was some kind of backbone left, it would be 1900's (big countries, maybe like a 'front' and 'objectives'). If there was too much chaos, it would turn into feudalism with lots of local wars, that would need very little justification, propaganda, etc.
For instance, it would be like everyone turned into germany after WW1 (but worse). So the government would probobly take the form of postimperial Germany (promise to rebuild might of previous government). How easy is it for those types of governments to get into wars with each other? Like you don't have to pay reparations or surrender army, more like pay to fix stuff and the military is all gone, but the result might be kind of the same. Granted they might be a little less jealous then Germany since everyone is gonna be destroyed, but its easy to spin some news paper to say that the other country did not suffer nearly as much and stuff like that..