A surviving Third Reich (or any other Germany at all, maybe even the Kaiser's) which is engaged in a Cold War against the west... where
could it realistically test its nukes?
I mean, the Soviets had the huge empty frozen siberia, and the US had alot of largely unpopulated land in the west still, but Germany doesn't really have that much space... this is assuming Germany only has it's 'core' territory available, of course (though maybe Imperial Germany could use colonies); and that the radioactive side-effects arent yet fully understood, so no underground tests at first.