By ignoring reality: Edom = Medes (and Persians). That's not to say Israel will not face others - it will. Israel will face not a people, but a government system with roots in ancient Greece.
Zechariah 12 2"Behold, I am going to make Jerusalem a cup that causes reeling to all the peoples around; and when the siege is against Jerusalem, it will also be against Judah. 3"It will come about in that day that I will make Jerusalem a heavy stone for all the peoples; all who lift it will be severely injured. And all the nations of the earth will be gathered against it.
