> Like we have prehistoric skeletons with obvious signs of traumatic injury inflicted by tools.
No one is arguing that modern technology is the sole or even principal cause of military deaths. The argument is simply that technology has greatly facilitated the ease and scale.
Imagine a world without nuclear weapons, automatic weapons, rockets, and explosives (other than gunpowder). There would still be wars, certainly, but they would be a lot less destructive.
The number of casualties from the American civil war was estimated at 700,000 soldiers from both sides.
The death toll from Hiroshima and Nagasaki is estimated at about 200,000.
Nuclear weapons have killed far fewer people then any other type in history, whereas the musket did some work.
And you know, a bunch of Romans with the pinnacle of technology - the sharp thing on a long stick - in the Battle of Carthage collectively had about 100,000 casualties and also demolished a city. And that was one of many battles in many wars.
The masses of man and ground into the masses of man in conflict, at scale, at every turn that we've had organized society. We live in a time where casualty scales are actually shockingly low in conflict.