>>64141815
if you're not in a direct hit area, pretty easily. establish food and water early(pretty standard camping shit), and avoid being downriver of Nebraska and Wyoming on any water sources you drink from for the first few years(unless the nuke strategy was for cities, in which case avoid the Mississippi mostly). carry a dosimeter or geiger counter and just check it habitually just in case. unironically with the current stockpiles you're more likely to have problems long-term with food and water than anything else, so practice growing in a backyard garden as early as you can manage. three sisters is easy as fuck and a good way to get started and have a decent fallback of staples, things like onions, potatoes, and garlic grow pretty decently without much work by comparison.

somewhere like the US might actually at worst see a regression to standards of living in places like modern day alabama or louisiana post-disasters for a few years before a 'return to normalcy' would begin. hell in some places waffle house would probably be reopened in one or two months at most.