That is the reason why the international system of law and order doesn’t exist anymore. The precedent was set by NATO when the war mongering organization violated the UN Charter, and despite objections from the UN SC violated a sovereignty and a territorial integrity of a country by gifting a part of that country to the ethnic minority.
NATO was ready to invade Serbia and completely destroy it, so Miloswvic signed a capitulation to avoid that, despite the army and the people wanting to keep fighting. There were no problems with volunteers back then, unlike the reluctance amongst the Ukrainians today to fight for their land.
