Khalid ibn al-Walid

Khalid ibn al-Walid (585-642 CE) was one of the greatest military commanders in history, titled Sayf Allah al-Maslul (the Drawn Sword of Allah) by Prophet Muhammad. A member of the Makhzum clan of the Quraysh, Khalid was trained as a warrior from childhood and first gained fame fighting against the Muslims at the Battle of Uhud in 3 AH, where his cavalry charge turned the tide against the Muslim forces. He accepted Islam in 8 AH (629 CE) alongside Amr ibn al-As and Uthman ibn Talhah.

Khalid's first major command as a Muslim came at the Battle of Mutah, where he took over leadership after the three appointed commanders were martyred. He skillfully managed a tactical withdrawal against a vastly larger Byzantine force, saving the Muslim army. The Prophet honored him with the title Sword of Allah for this feat. He played a crucial role in the conquest of Mecca and the Battle of Hunayn.

During the caliphate of Abu Bakr, Khalid was the chief commander in the Ridda wars that reunified Arabia. He then led the campaign against the Sasanian Empire in Iraq, winning every battle he fought, before making an extraordinary forced march across the Syrian desert to reinforce the Muslim armies in the Levant. He commanded the decisive Muslim victory at the Battle of Yarmouk in 636 CE against the Byzantine Empire. Khalid never lost a single battle in his career, whether as a pagan or as a Muslim. He was relieved of command by Umar but accepted the decision with complete obedience. He died in Homs, Syria, in 21 AH (642 CE), reportedly lamenting that he died in his bed rather than on the battlefield.