If one's team ranks lower than the other, it will show insufficient respect for the other, and secondly, there will be no generals in North Korea.
Therefore, it is generally not completely certain that you can't find a level of military attache to fight, such as lords against lords and generals against generals.
As for what you said, there is no such thing as killing a soldier without fighting.
In the past, people valued reputation. Most people would rather die than lose, which would make them lose face and affect their future. Therefore, most people rarely flinch even if they lose to their opponents.
In the past, fighting was very about morale.
Therefore, as long as the general looks at the defeated side and does not escape, there will be war.