>>663434
Christianity is against the morality that says "the ends justify the means" , this morality is demonic as it places temporal ends above inherent morality, (i.e we will kill some innocents for the greater good, so that the collective benefits) It's actually very hard/impossible to conduct a war that does not embrace this morality.
The war as such will always be immoral because of this fact, but that doesn't mean your actions have to be. You could be a soldier who refuses to take certain orders, orders that would involve collateral damage.