Yeah, my point exactly, actually, but you are the one totally closing your ears to history, facts and data ⊠I even have military training and you are like âso what?â which is quite amusing.
You constantly resort to childish snide remarks like these with posts that contain nothing but derogatory comments. Quite an odd behaviour for a moderator, but hey.
So, would you like me to present some knowledge and research on the matter or that would not be enough either? 
Letâs see who the âbrick wallâ is here 
There you go:
https://web.mit.edu/~dcltdw/AOW/3.html
âThe general rule for use of the military is that it is better to keep a nation intact than to destroy it. It is better to keep an army intact than to destroy it, better to keep a division intact than to destroy it, better to keep a battalion intact than to destroy it, better to keep a unit intact than to destroy it.â
âTo plunder a locality, divide up your troops. to expand your territory, divide the spoils.â
" Do not stop an army on its way home. (I wonder why?
)
A surrounded army must be given a way out. ( hmmm. So causing despair is not a good idea?)
Do not press a desperate enemy. ( what creates more desperation than danger to the life of their families?
)
These are rules of military operations."
âPut them in a spot where they have no place to go, and they will die before fleeing. If they are to die there, what can they not do? Warriors exert their full strength. When warriors are in great danger, then they have no fear. When there is nowhere to go they are firm, when they are deeply involved they stick to it. If they have no choice, they will fight.â
Confront them with annihilation, and they will then survive; plunge them into a deadly situation, and they will then live. When people fall into danger, they are then able to strive for victory.
But Sun Tzu is old news, eh? 
More:
https://scholar.princeton.edu/sites/default/files/jns/files/felter_and_shapiro.pdf
âIn asymmetric conflicts, such as most counterinsurgencies, information
flows, collaboration, and ultimately the support of the local population can be key to achieving strategic objectives. Thus, limiting casualties to noncombatants and other actions that alienate the population in these types of conflicts is a key part of a winning strategy.â
More!
âhe U.S. military takes significant precautions in its training and planning for operations to minimize civilian casualties. The Department of Defense (DoD) has shown willingness to examine civilian casualties reports closely and adjust planning and targeting procedures, while preserving operational security. However, there are at least three compelling reasons why greater transparency and accountability is needed. First, in the truest sense, it is an absolute tragedy when a civilian is mistakenly killed during a military operation. Second, operations that end in civilian casualties serve as a recruiting tool for those that would wish to harm the United States or its coalition partners. Finally, failureâor perceptions of failure due to lack of transparencyâto address gaps in intelligence and operational procedures that lead to civilian casualties damages U.S. leadership credibility.â
More? MORE! 
âThe impact of air raids on civilian morale during the Second World War has been the subject of much dispute. Official histories concluded that the mental health of the nation may have improved, while panic was a rare phenomenon.â
âIn the event, civilians proved more resilient than planners had predicted, largely because they had underestimated their adaptability and resourcefulness, and because the lengthy conflict had involved so many in constructive participant roles.â
oh, yes indeed, some more:
https://www.tandfonline.com/doi/abs/10.1080/13669870500289005
âThe effect of aerial bombing on the publicâs morale during the Second World War and the incidence of psychiatric casualties have been explored to provide reference points for the current terrorist threat. Systematic study of restricted government investigations and intelligence reports into the effect of airâraids on major British towns and contemporary medical publications have shown that panic was a rare phenomenon and arose in defined circumstances. Morale fluctuated according to the intensity of attacks, preparedness and popular perceptions of how successfully the war was being conducted. Resilience was in part a function of the active involvement of the public in its own defence but also reflected the inability of German bombers to deliver a concentrated attack over a wide area. Most civilians, by their very numbers, were likely to survive. Inappropriate or excessive precautionary measures may serve to weaken societyâs natural bonds and, in turn, create anxious and avoidant behaviour. Weapons that tap into contemporary health fears have the greatest psychological impact. Efforts by government to engage the public not only build trust but may also make an effective contribution to the campaign against terrorism.â
Had enough? I have more if youâd like ⊠and thatâs just the modern stuff 
You do not want me to open books like this and this and start digging for historical examples.
To be honest, I donât either. I do not want to open the crates of old books and dig through that for something that is on the âcommon knowledgeâ level.
So, âbrick wallâ or maybe I know what I am talking about and you donât, hmm?
Oh, I would accept that this happens every day of the week 
I have no problem at all with your sentence that is a bad idea, that people and commanders should have known better, yet, it does happen against the better knowledge and wisdom. That makes perfect sense.
The problem is that Vstovepâs argument/point here was that it IS actually a good and effective idea that reduces morale.
Thank God, it is not.
It does happen (no argument there - I even mentioned Kalavryta, didnât I?), but it is not a good idea. (also proven by Kalavryta)
And military people noted that it was not a good idea, exactly because it did happen and it never ever worked towards reducing morale. That was my point.