The hoplon was a large, round shield used by ancient Greek warriors, particularly the hoplites. Made of wood and often reinforced with metal, it was designed to provide maximum protection in battle. The hoplon was not just a defensive tool; it also symbolized the warrior's identity and status in society. In addition to its practical use, the hoplon played a crucial role in the famous phalanx formation, where soldiers stood shoulder to shoulder, creating a wall of shields. This formation allowed the hoplites to work together effectively, making them a formidable force on the battlefield.