J Francis McComas' "Brave New World" (short story, prehistoric fiction): When warriors became traders
Author is the founding coeditor of F&SF. And is probably equally well known as the coeditor of the iconic "Adventures in Time and Space" - said to be among the books that helped sf win recognition as a separate genre.
No time is mentioned, but the story appears to be set in about the same world as Jean Auel's "Earth's Children" series; that would place it some 30,000 odd years in the past. Mankind had then been around less than 10,000 years in its current avatar.
Story summary.A party of youngsters from tribe of "The People" are on a short journey - on foot, of course - to raid a camp of a substantially more civilized tribe "Mud Dwellers" for women! There is another nearby tribe "Dwellers-in-Caves", but raids to them are avoided because they retaliate in kind; Mud Dwellers are considered to be soft targets.
They'll be found by men of Mud Dwellers & cornered on a mountain ledge shortly before they were to raid. There is a deadlock - neither party can clearly win a fight here; a deadlock eventually resolved by trading their possessions, an event that will seed many future trading expeditions rather than normal women kidnapping expeditions.
Fact sheet.First published: F&SF, September 1954.