While it is true that we've won every battle we've fought... knowing what we know now means we have to shift our strategy.
By killing the Third Party soldiers, there are chances for them to get away once they reincarnate. And there's only been a single successful breakout in the Malnosso's recorded history.
What we need to do is fight an utterly non-lethal war. Subduing the enemy and handing them all over to the Malnosso ensures a higher rate of elimination of the Third Party's forces.
[Action]
By killing the Third Party soldiers, there are chances for them to get away once they reincarnate. And there's only been a single successful breakout in the Malnosso's recorded history.
What we need to do is fight an utterly non-lethal war. Subduing the enemy and handing them all over to the Malnosso ensures a higher rate of elimination of the Third Party's forces.