Well, assuming progress in the place they fled from, there are bound to be periods in between "You'll die if you go back now" and "It's perfectly fine to go bac

Well, assuming progress in the place they fled from, there are bound to be periods in between "You'll die if you go back now" and "It's perfectly fine to go back now". For instance, when the invaders have gone, but there are too few homes due to the destruction and winter is approaching.