The world is built upon death. We have killed eachother to left and right ever since the stone-age. I don't think we can understand war or the people who engage in war, because we haven't been there, we haven't seen, heard, felt or gone through what they have. War is a very complicated thing, people die, (obviously) from both sides, wether it was inteded or not, accidents happen, in daily life and in war. I don't think every American soldier who went to Iraq was like; ''Oh fuck yeah I wanna kill some mother fucking sand-monkeys and rape their family!''. No...(that's the Red-army for you). War is not about the death of innocents/civillians (mostly)...agh, this was a very unprepared speech.
The point I'm trying to make here is that war is nothing new, it has been with us as long as we've lived, we invented it....and war....war never changes.