In an internal conflict the only side you can put political pressure on is the ruling government. Let’s take as a hypothetical, some Waco style paramilitary st

In an internal conflict the only side you can put political pressure on is the ruling government. Let’s take as a hypothetical, some Waco style paramilitary starts terrorist sticks in the US, and in response the US military begins shelling Chicago night and day killing thousands more civilians and the terrorists ever did. Should the UN come out and censure both sides? The terrorists are just domestic criminals, and the UN doesn’t have a particular interest in that. However turning your military against helpless civilians is something the UN does care about. I’m not sure this fits 100% but it’s the logic I’m following.