The Pilum was a type of throwing spear used by the ancient Roman army. It typically featured a long wooden shaft and a heavy iron tip, designed to penetrate enemy shields and armor. Roman soldiers, known as legionaries, would throw the pilum at their opponents before engaging in close combat, making it an essential part of their military strategy. The design of the pilum allowed it to bend upon impact, preventing enemies from throwing it back. This weapon was a key element in the effectiveness of the Roman legions, contributing to their dominance in battles throughout the Roman Empire.