No, they aren’t - the difference is all about formalities; from the moral standpoint they are precisely the same. It doesn’t matter if you go killing innocent people because of religion, political interests, race, or money.
If that's true (which I doubt), the US military is fantastically bad at their job.
Low estimates of the cost of the Iraq war put it at 185k dead iraqi civilians.
I believe that it is much more likely that the US military simply doesn't care much about civilian deaths incurred whilst it seeks useless vengeance. This satisfies Occam's Razor, too.
Both are tragedies but both are different.