I consider enemy civilian population centers as legitimate targets in war. This would include what you call "innocent children". If a potential enemy does not want their civilians massacred, they should think twice before starting a war.
It is also no coincidence that the last war won by the United States was one in which civilians were actively targeted.
you wrote: “I consider enemy civilian population centers as legitimate targets in war. “
By that logic a belligerent can define anyone they choose as an enemy and then kill them. I’m pretty certain the NAtional Socialist Party did that.
I feel very, very sorry for you.