While it is true that WWII was horrendous, likely the war with the biggest impact in terms of sheer numbers, what JWs fail to notice is that it was followed by 70 years--a lifetime--of what historians consider to be one of humanities' most peaceful and prosperous eras, the so-called Pax Americana, in which physical well-being, longevity and personal incomes rose more than any other time, relatively speaking. (Note that this doesn't mean there weren't famines, wars, etc. in a localized or limited scale but in comparison globally to other times. See Max Roser and his fascinating historical graphs.)
So how what I want to know, from JWs, is how you fit that into the last days signage? I have had this convo with my believing husband and he hems and haws. This fact is, of course, never addressed.