This is a prophecy that will happen. Nine armies will come against Israel for all their atrocities that they have brought upon mankind. The only Noahide law that will truly remain in effect is the one that they will hear from those that they ask for shelter from their enemies. "No a hide", "Know a hide", "Know a hyde".
Remember NEIN, NEIN, NEIN? 3 times.
You can't save a wicked evil generation from doing things that cause their karma because they are pining for it. If you could, they would have repented already and come into the fold. They have no messengers and their messages are filled with mockeries and evidence of for their own downfall.