Funny thing is, the Bible really doesn’t speak of that. It speaks of the armies that come to destroy Zion as being destroyed themselves. The rest is opportunistic interpretation.

Whether Zion refers to Israel the nation, the spiritual descendants of Abraham, Jerusalem or the New Jerusalem is all in how you read it. And the Jewish scriptures are pretty clear that the land will be levelled in the fighting, after which people from all nations will be able to come to the rebuilt Jerusalem in peace.