Board Thread:New on Turtledove/@comment-24402759-20150517212707/@comment-21519-20150521223440

Also a good point. Easterly winds prevail in Europe so London would think twice about releasing a massive cloud of radioactive fallout 140 miles off their western shore. But there are no such restrictions for the US of 191. If they do find that they need to leave a given occupied territory, they can flatten it on the way out.