An ‘early medieval batte scene’ from Polish artist Aleksander Karcz.
As a general rule, I tend to avoid large scale battle scenes in my books, except where they’re the culmination of some important plot point or otherwise a necessary contribution to the story I’m writing.
Fantasy entertainment has probably set a few unrealistic expectations when it comes to Irish battles – cartainly in pre-history times (i.e. pre 5th century). During that period, there was no real warrior class in the Irish society of the time and the low population density meant tribal warfare would have been more ‘skirmish’ than ‘pitched battle.’