 The battle is generally believed by scholars to be a defeat for the Muslims, as they had incurred greater losses than the Meccans. Chase F. Robinson, writing in the Encyclopaedia of Islam, states the notion that "the Muslims suffered a disheartening defeat is clear enough." Other scholars such as William Montgomery Watt disagree, noting that while the Muslims did not win, the Meccans had failed to achieve their strategic aim of destroying Muhammad and his followers; and that the Meccans' untimely withdrawal indicated weakness on their part. The battle is also noted for the emergence of the military leadership and tactical military genius of Khalid ibn al-Walid, who would later become the most famous of all Arab generals during the Islamic expansion era, in conquering the Sassanid Empire and Byzantine held Syria.
