@Chrona:
Most humans, modern or not, would be more freaked out at the higher chance of dying rather than caring which side exactly is responsible for his reason for having a higher chance of dying.
Most humans also assume, they are the protagonists and can't be killed or won't be hurt, as that would be too horrifying to imagine. So I wouldn't count on that working. Even invading forces always find more fresh soldiers to send into the fray. If anything, showing the enemy soldiers, that you are evil, will more likely boost the moral.
Simultaneously, you're stating hospitals are a "burden" on the army that is supporting them, yet an "asset" in the aftermath. Which is it?
That is correct.
...
Okay, I'll answer that honestly: Both. Or better said, they are a necessity for war parties, which use them, or the moral of their own troops will drop. So it isn't a question, if those parties want to run them in first place. They have to. Those facilities are a burden to run, but in the long run they yield advantages. Still they are a burden in the current war efforts. That just seemingly is the way it is and I do not see any contradiction here.
Many of the soldiers, who need hospitals, won't return to the front line anyway and most likely they won't be able to bolster the enemies economy at home in wartime enough to break even, what they costed.
Assuming you are facing an enemy, who isn't bulldozing you, you are indeed better off keeping them standing. Even if you are not taking those juicy citizens as slaves, you want to make the enemy surrender. But what comes next? "Good game"? "See ya in 30 years for the next round?" You want to enemy to pay for the war. Keeping the enemy's economy so far intact, that he is capable to do so, would be nice. So you have to find something that hinders the enemy's war efforts in wartime, yet helps to preserve his economy
years later...Keep those hospitals standing, as you won't lose the war because it. Those facilities are the enemy's after-war efforts, that he has to make, because he is forced to. They are weakening him. Also keep as many people, who can tell tales about how they got terribly wounded and scared for live, alive.