The Battle of the Iron Bridge was fought between the Muslim Rashidun army and the Byzantine army in 637 AD. The battle took its name from a nearby nine-arch stone bridge (also known as Jisr al-Hadid) spanning the Orontes River which had gates trimmed with iron. It was one of the last battles fought between the Byzantines and Rashidun Caliphate in the province of Syria. The aftermath of the battle marked the nearly complete annexation of the province into the Rashidun Caliphate with the fall of its capital.