The rules of war evolved specifically so armies would not feel the need to slaughter civilians.
Uniforms, military facilities kept separate from civilian infrastructure, etc. are rules for a reason.
If the group killing your soldiers isn't adhering to these rules of war then all the civilians in the area will find themselves at risk.
There is no world where combatants can expect to be allowed to enjoy the protections civilians are afforded while still killing you.
If the group killing your soldiers isn't adhering to these rules of war then all the civilians in the area will find themselves at risk.
There is no world where combatants can expect to be allowed to enjoy the protections civilians are afforded while still killing you.