With the high possibility of global nuclear warm looming, bugging out at least for a few days or weeks is the best choice. If your in a major city which could be targeted, military analysts state that with a high yield warhead, we need to be at least 40-50km’s away from the center of the city. Of course, depending on wind direction will determine how long one needs to stay away from local civilization, and depending if there would even be anything safe and in tact before returning? Likely, with a high yield strike, the city and surrounding area would be a wasteland and choosing to remain a few miles from the city would be the best choice for starting over! We live in Calgary, Alberta and aside from general anarchy, grid down and financial collapse, we are more concerned with a direct or nearby nuclear attack for bugging out to a small town where we have family. Any other type of doomsday scenario would need to be monitored day by day according to the degree of developing risk and danger. Priority is to have sufficient gear, supplies, weapons/ammo, and above all else….physical and mental training!!! Phil Edwards. Retired Captain, Canadian Forces.