It’s understandable too, how do you convince someone to stop fighting back so their enemy will stop punching them?
Like, remember when your parents told you that the best way to stop arguing with someone was to just stop arguing?
This is the same situation but instead of just arguing they’re literally committing war crimes and terrorist acts against each other.
Hard to say who started it in the moment when both are acting, and when everyone is acting in it frankly the who started it becomes irrelevant when there is only one good solution, for everyone to stop.