war is amoral. but it's also a fact of life. humans, being animals, have been killing each other since the dawn of time. for land, resources, passage through an area... all sorts of reasons. the only truly amoral thing i can think of is killing your own, without due cause. the other will always be the other, therefore it is not your duty to care how they are treated. clan first, allies a very distant second. the other can be eliminated with impunity.
United States