Humans will never be entirely out of direct combat in wars (especially 'ground' wars)... but that is not to say large portions of the "war machine" (if you will) will not be replaced by much more efficient nonhuman systems (see computers, engines, guns, explosives, anything that you see in 'modern' armies that are not human, and more). We're simply too efficient and effective of an available resource to not use. And even if, for argument's sake, we are not directly incorporated into armies... it is quite easy for us to improvise our own weapons (or to use those granted(?) us by evolution), so it is not as if our not being officially in wars directly has much basis on wether we are in them or not.
Regarding the 'moral' implications behind a (possibly) corpse eating machine: what of it? Why would doing anything at all to a corpse be notable morally?
Regarding the 'moral' implications behind a (possibly) corpse eating machine: what of it? Why would doing anything at all to a corpse be notable morally?
Please give me a home where cloud buffalo roam
Where the dear and the strangers can play
Where sometimes is heard a discouraging word
But the skies are not stormy all day



