Palestinians who blow up busses in Israel are hitting military targets (all israeli citizens undergo compulsory military training and are part of a reserves contingent ergo are legitimate military targets.
Or:
Flying a plane into the pentagon.
I mean its not as clear cut as you want it to be. The dresden bombings didnt clearly target military objects. Its not as simple as classification when the one doing the classifying is so willing to act in a hypocritical grey zone.