As a 21st century human, I got one thing to say about Kanki's claim that his way is the mature adult way of warfare.
No Kanki, quite the opposite. Pillaging, plundering, raping, is how a young and barbaric cultures play. A mature civilization adheres to discipline, ya savage uncultured swine.
This fits right to the topic at hand, but yeah, you are right of course, if fighting happens in the first place, at least it can be civilized and not involve torturing already beat soldiers and or innocent citizens who never held a sword in their hands.