
Key commander at Qadisiyyah and Yarmouk.
Al-Qaqa ibn Amr commanded a cavalry division at the Battle of al-Qadisiyyah against the Sassanid Empire. His tactical maneuvers, including a night attack, helped secure a decisive Arab victory that opened the way for the conquest of Ctesiphon and the fall of the Sassanid capital.
Al-Qaqa ibn Amr participated in the Battle of Yarmouk against the Byzantine Empire. He led a cavalry charge that exploited a gap in the Byzantine lines, contributing to the decisive Arab victory that secured Syria and Palestine for the Rashidun Caliphate.
Al-Qaqa ibn Amr was among the commanders who besieged and captured the Sassanid capital of Ctesiphon. His forces entered the city after the Persian army retreated, leading to the seizure of the royal treasury and the collapse of Sassanid resistance in Mesopotamia.