Ranma Al'Thor wrote:

On Wed, 29 Oct 1997, Matthew Campbell wrote:

Well, the youma-killer seemed to think it was their only option.  He
must have had some reason to think they couldn't bargain or negotiate
with her.  It might not be a good reason, but he knew how powerful she
was.  It seems logical that if he believed anything but an all-out
attack would work, he would have tried it.

I'm curious as to how, in a month, they determined that she was not
amenable to negotiation.  As far as I can tell from the two stories, they
simply assumed she was not.  There's not a hint that they ever tried and
failed.

I doubt they tried.  Negotiations would have forewarned the N.W.O.
that opposition was organising, so they probably weighed the odds
and tried for a surprise coup d'etat

What I wonder is how founded in the original is this whole 
"purification" on a planetary scale business.