For exmaple
"Before societies, people often went to war without know the true horrors"
For exmaple
"Before societies, people often went to war without know the true horrors"
Bellicose also comes to mind. (M-W)
favoring or inclined to start quarrels or wars
"A Bellicose Society"
"One Million Mercenaries" by John McCormack (Google Books)
"If the Chachapoya were a bellicose society..."
The Routledge Handbook of the Bioarchaeology of Human Conflict by Christopher Knüsel (Google Books)
"...as defended refuges in a bellicose society..."
Tribe and Polity in Late Prehistoric Europe: Demography, Production, and ... edited by D. Blair Gibson (Google Books)
Pardon my style in citing references. I have zero experience as an academic researcher, and how I did it college is just a fond memory now.
Belligerent may suggest the idea:
- Inclined or eager to fight; hostile or aggressive. (AHD)
Militaristic is probably the word you are looking for.
Check the broader concept: Militarism