I think the most untouched region, Equatorial Africa, would be mixed. There's a real lack of Africa WWIII TLs and that's sad. Likely some regions go into chaos but others are kept under tight belts. East Africa is interesting becuase if it's at the right time you have 10,000s of WarPac and communist troops with no country to go home to. Do they go back up to the homelands or stay? I think that some countries eg Ethiopia will have their problems get worse but others would survive but with much less tech.