https://en.wikipedia.org/wiki/Appian_Way#The_crucifixion_of_...
https://en.wikipedia.org/wiki/Appian_Way#The_crucifixion_of_...
If any nation today had the ability to slaughter their enemies, they would. When the United States had that ability in the 1940s, we planned on doing so and reengineered the entire military complex to do so. When the Germans had the ability to do so in Angola in the early 1900s, they did.
This is untrue. Most citizens don't have the stomach for total war or civilian massacre. It's not considered acceptable or moral by most people. There was no lack of ability constraining the US from carpet bombing everything habitable in Afghanistan after 9/11, but relatively few people were advocating for that.
Only the people running the tribe matter, whether that be a bronze age war band or a modern army. The fact that only a few people advocated the bombing you described doesn't change the fact that bombs were dropped.
Probably invented by Tacitus.