What was a battle style?
Depending on the practitioner, the answer varied.
At the lowest level, a battle style was nothing more than a comprehensive collection of movements and steps aimed at giving the practitioner sufficient competence to engage in battle. A set of practices meant to encompass all possible combat situations, and arm the warrior with tools to solve them.
There were countless battle styles, some taught to groups of people, others formed from the personal habits and quirks of talented combatants. Some styles emphasized strength and strived to overpower the opponent, some emphasized speed and precision, some emphasized solid defense and waiting for a perfect moment to counterattack.
There were solid battle styles created with deep insight, and poor battle styles that were concocted without a real understanding of the fundamental laws of combat.