[Harmless Teddy Bear]

You burned Christian villages and took slaves and you call that civilized? Just because we wouldn't trade with you?

And then you just can't leave well enough alone. No, you have to go chasing us all over the fricking map!

[Chad Fairbanks]

It was our policy. If we took prisoners, we assimilated them into our ranks. However, if survivors of the fight escaped, then we had to worry about a "Fifth Column" within our ranks, so the policy was to keep chasing and killing or capturing until everyone was accounted for.

It was the only way to be certain. ;0)