I don't believe there is going to be a nuclear war anytime soon. And I don't think the bible says that 2/3rd's of the population is about to be wiped out. I also don't think the pakistani monsoon floods or the ukrainian civil war have anything to do with bible prophecy. There have been much worse times, think cold war, think WWII. I can understand why Israeli's would want to prepare in the face of Iran possibly developing a nuclear weapon (to be clear, I don't think Iran will ever succeed in producing such a weapon, although I understand the threat). But there is no need to panic, enjoy life, don't worry, there have been much worse times.