Collateral murder.

Civilians die in wars, and that's with the best intentions of all parties to the conflict. If one or both has got radicalised, then a lot of civilians die in war.

you are justifying 9/11 attack on the US, the similar logic to yours was used by Al-Qaeda

No, I'm explaining to you that accidental civilian casualties in a war is a normal part of the terrible activity that is war. Good soldiers with the best of intentions will kill civilians in a war, because war is chaotic and very dangerous.

Radicalised soldiers and armies will give less and less concern to civilians, and at a certain hated level civilians actually will get targeted by individual soldiers or squads. If it then moves up the command chain and there's not enough accountability or pushback from the top leadership then you get to proper genocidal actions like what happened at Srebrenica.

Targeting civilians for death is not acceptable or justifiable.

This is the Israeli take that is continually pushed to normalize their approach to "removing baby terrorists"