This document presents an analysis that revolves around one simple that the behaviour of multiple combatants conditions the tactical approach that an outnumbered combatant needs to employ.
The author starts by systematising the main elements that make up such standardised approach to multiple opponent combat, and then covers how this body of knowledge applies to the practice of outnumbered combat within Aikido, Systema & Jogo do Pau-stick fighting.
The two most essential components of multiple threat fighting. Are energy conservation and skill of opponents. Weaker opponents must be eliminated first. Each strike must be precise and designed to kill or disable. The stronger opponent must be engaged with intent to kill. Throat, crush larynx; knees, disjoint or break; eyes, thumb jab blinding; nose, crush. If you have a knife every move must cut muscle & tendon. Allow opponent to strike blade, cut ankle tendon, hamstring, inner arm, etc. Each strike must disable so as to eliminate opponents with minimal energy. This is used in life or death defense only. This is not competition fighting. This is killing so as not to be killed. Do you want to live or just die. Practice these with wood blades and open hand combat styles. Expect broken fingers. Fight through pain. Do not allow opponents to weaken your legs. Move low with blade so each opponent kick cuts muscle from their leg. If no knife, move inside hit throat, eyes, nose, solar plexus, spleen, liver, kidneys. If your hands are caught, bite through opponent wrist tendons or elbow tendons. You are fighting superior forces for your own life safety. There are no rules, nothing is off limits. Do you want to live? Or, are you willing to die?
This book does not deal with defense from multiple opponents except in a general sense. There is some food for thought if you already have considerable experience and knowledge of martial arts. It worth reading but not overly exciting if you have experience in real world combat. Brings up a few good points but not overly exhaustive on the subject.