Hydarnes the Elder vs Li Dian

Hydarnes was one of the seven Persian nobles who conspired to overthrow Gaumata, the Magian usurper who had seized the throne after Cambyses II's death. He participated in the assassination of Gaumata, paving the way for Darius I to become king.

Darius I appointed Hydarnes as governor of the central satrapies of the Achaemenid Empire, a region encompassing Media and surrounding territories. He administered this key area, ensuring loyalty and collecting tribute for the crown.

Hydarnes commanded the elite Persian infantry unit known as the Immortals during the Second Persian invasion of Greece. He led them at the Battle of Thermopylae, where they outflanked the Greek position via the Anopaia path, leading to the Greek defeat.

Li Dian served under Cao Cao during the decisive campaign against Yuan Shao. He contributed to supply lines and fought in engagements that led to Cao Cao's victory, solidifying Wei's control over northern China.

Li Dian, alongside Xiahou Dun, ambushed Liu Bei's forces at Bowang. Li Dian correctly predicted Liu Bei's trap and advised caution, but Xiahou Dun ignored him and was defeated. Li Dian then rescued the retreating Wei troops.

Li Dian participated in the defense of Hefei against Sun Quan's invasion. He worked alongside Zhang Liao and Yue Jin, contributing to the successful repulsion of Wu forces, which secured Wei's eastern border.

Li Dian set aside a personal feud with fellow general Zhang Liao to cooperate during the defense of Hefei. This decision, urged by Cao Cao's orders, allowed for unified command and contributed to the victory against Sun Quan.