Dian Wei
As the Han dynasty fell into disarray after the Yellow Turban Rebellion, its system of conscription and checks on military leadership broke down, giving local leaders the autonomy to recruit their own personal armies. At the heart of each army was a group of trusted Companions (親近 "qinjin") consisting of family members, close friends and clansmen hired by whatever means was available to their lord. Cao Cao's earliest commanders who formed the nucleus of his army were all clansmen (Cao Xiu, Cao Zhen, Cao Chun). There was no need for conscription as the conflicts of the late Han dynasty created willing recruits who sought protection under a strong army. This type of soldier, characterized by a lack of loyalty to state or nation, primarily concerned with survival, made up the majority of the army outside of the leader's close following. Due to the lack of loyalty among common troops, acts of heroism and courage were particularly emphasized among commanders who were expected to lead from the front. A typical example of this type of commander would be Dian Wei, a former local bully noted for his great strength, appetite, and his choice of weaponry, two halberds of immense weight, who served under Cao Cao. In 195, he personally led a group of volunteers clad in double armour (兩鎧 "liang kai") against Lü Bu's forces while his liege made his escape. He was promoted to colonel of the bodyguard unit known as the Tiger Warriors and later met his death against Zhang Xiu in 197. While echoes of Han organization continued through the formal titles of military structure, in effect the wars of the Three Kingdoms were fought between armies of bands led by individuals selected by dint of violence and charisma.