Do you think bombing citites/civilians is a fair/justifiable act of war?

I do not think bombing, either cities or civilians, is a fair or justifiable act of war.  Many civilians are just minding their own business and don't even want to be involved in the war.  Innocent people were being killed because of these bombings which is not right.  Also, there are many children out there in the cities who can get injured or killed which is terrible to think about because they don't even understand what's going on.   The fighting should stay between the army and the people who are actually involved in it.  If they won't stop bombing citites then they should atleast have to send a warning to the country so they can evacuate if needed.  However, I still don't think bombing cities/civilians is right.