There is no Nation
There is no nation that has always fought a clean war. There is no such thing as a perfectly clean and civilized War. Anyone who believes that there is is an idiot and has never been any battle Beyond going to the bathroom. And is very naive. The only difference is there are nations that do try very hard to avoid and minimize collateral damage and those who do not care at all. The examples the way the United States fought in Afghanistan versus the way the Soviet Russians fought on the same Battlefield. Both sides had civilian casualties on their hands however most of ours were not totally deliberate. And whether it be uniform soldiers to execute civilians or a man and civilian clothes a woman or a child that triggers a martyrdom vest in the middle of a shopping mall they are both wrong. Those are the facts. Those are fair statistics and the truth. You can accept them or don't but it does not change reality. The only thing that separates uniformed military forces and insurgents or terrorists is intentions of attack and Target package selection