I think the safest place to be on earth on the event of Nuclear War will be Australia, Australians are lovable people and i dont think have many haters in the world, Their isolation will be of great advantage to them should a Nuclear war starts. Ironically, the place is filled with dangerous and very deadly animals so if Nuclear war doesn't wipe them out, These animals will eventually do.
When I was asked, I would like to leave the code, then Australia was in the last places because of poisonous and bloodthirsty animals, but if the question sounds, the code you escape from World War II, it really will be australia. This country has nothing to share with others.