I would agree that the actions taken by the Serbs in places like Srebrenica were horrific. However the very idea of rules to war has always sounded stupid to me. I also find the condemnation and prosecution of these Serbs, rather a 1-sided affair. Its been conveniently forgotten that the Serbs fought along side the Allies in WWI, and that it was the "Ustaše" of the Croats, that brought the first wave of modern genocidal actions to Yugoslavia...against the Serbs, who were again, fighting with the Allies in WWII.
Mladic and other Serb military are still alive to be prosecuted by the very people he and his Serb compatriots fought with in both world wars. May I suggest that some of you actually learn about the history of Yugoslavia, so that while you're busy with your infernal justice signaling, you actually have some idea of what happened and why? If you do, you may just find yourself understanding that, while the actions of the Serb military was brutal and murderous, and while 2 "wrongs" do not make a "right", there were many "wrongs" being perpetrated and that payback is a bitch.
https://www.ricksteves.com/watch-read-listen/read/understanding-yugoslavia