But if you drop an atomic bomb on a city to kill non-comabatants and civilians, including innocent women and children, in a war, isn’t that murder?
No murder requires intent.
If, for example, you drop an atomic bomb on the headquarters of the army you are fighting, and certain civilains are killed, the intent is to attack the headquarters.
You would need to ask yourself this, if all the civilans in the city had taked that day off and went to visit their Aunt Myrtle in another city, but all the generals and soliders had remained, would that attacker consider the attack to be a failure or a great sucess?
That is what speaks to the heart of Intent.
A great example is the D-Day invasion of Normandy. Eisenhower knew that there would be civilian casualties, both from the shellings, and during the fighting through the towns.
Did that knowledge mean that the D-Day invasions were immoral from the start?
If Eisenhower found out that all the French in Normandy, by some miracle, chose that day to visit their Aunt Marie in Nice and thus only Germans were killed, would he have been thrilled or bummed?