It would serve Russia no purpose to kill civilians. Their press releases, from the start, have declared that they are there to remove the Nazis from Ukraine and to liberate parts of Ukraine that have been under siege by these Nazis. They only went in with a small force. This is a not an invade and occupy army. This force is for strategic objectives. Get in, neutralize targets, get out.

I'm sure their forces have been given strict orders to minimize non-combatant casualties. They know this thing is a powder keg. They don't want a world war. Putin is not a dunce. He knows that no one will really win another world war. We will all lose if nukes are ever used.