Pre-Modern Armies for Worldbuilders, Part I: Why They Fight

Article excerpt

A deep-dive into the motivations and structure of pre-modern armies offers practical guidance for worldbuilders constructing fictional militaries. The essay examines why soldiers fought before modern nation-states existed, religious conviction, personal loyalty to lords, economic necessity, and coercion all played roles that varied wildly across cultures and centuries. Rather than assuming universal warrior psychology, the author argues that understanding historical contingencies helps creators build internally consistent fictional forces. The piece is the first in a series exploring how pre-modern armies actually functioned, from recruitment and logistics to tactics shaped by available technology and terrain.