[pc86]

Society, not governments, has more-or-less agreed for at least a few thousand years that there is a difference between these two acts. You're free to feel differently but as another commenter pointed out, there's not much of a discussion to be had on the ethics of killing in war if you think any two instances of one human killing another human are identical from a moral or ethical standpoint. Throughout all of human history, most people has believed there is a difference.