I'm trying to remember the Title/Author of a SF novel or short story I read sometime in the 1970s-1980s (but possibly later). It was in English. One of the key facts was that disputes could be settled by wars/battles between mercenary armies, but each army had a technology level. So, for example, an army equipped as Greek Hoplites should not face an army equipped as WW2 troopers without some sort of advantage or handicap for the more advanced army. I think that some sort of league was involved. Sorry if this is a bit vague.
Here's hoping.
T
Here's hoping.
T