Final answer:
Achilles disregards/disrespects a long-held, much-honored Greek tradition of war by disrespecting the enemy's leaders and warriors.
Step-by-step explanation:
Achilles disregards/disrespects a long-held, much-honored Greek tradition of war by disrespecting the enemy's leaders and warriors. In the Iliad, Achilles insults and humiliates the Trojan prince Hector after killing him, dragging his body behind his chariot. This act goes against the Greek code of conduct, which emphasizes respect for the fallen enemies. By disrespecting Hector, Achilles shows a disregard for this important tradition.