A "manipular system" refers to a type of ancient Roman military formation that utilized a flexible arrangement of troops. This system was designed to allow for better maneuverability on the battlefield, enabling soldiers to adapt to various combat situations. The formation typically consisted of three lines of soldiers, known as hastati, principes, and triarii, each with specific roles and responsibilities. The manipular system was effective in both offensive and defensive strategies, allowing for quick adjustments during battles. This organization helped the Roman army maintain its dominance in warfare, contributing to the expansion of the Roman Empire and its military prowess.