Thureophoroi were a type of ancient Greek infantry known for their use of large shields, called thureos. These soldiers typically fought in a phalanx formation, which allowed them to create a strong defensive line. Their equipment often included spears and armor, making them effective in both offense and defense during battles. The term "Thureophoroi" translates to "shield bearers," highlighting their primary role in warfare. They were particularly prominent during the Hellenistic period, serving in various armies across the Mediterranean. Their tactics and equipment influenced later military formations in ancient warfare.