Philopoemen of Megalopolis vs Rashidun commander Al-Qaqa

Philopoemen reformed the Achaean League's military, introducing Macedonian-style tactics and equipment. He trained the infantry to use the sarissa pike and organized them into phalanxes, transforming the League's army into a more effective fighting force.

Philopoemen led the Achaean League to a decisive victory over Sparta at the Battle of Mantinea. The Spartan army was destroyed, and their leader Machanidas was killed. This victory broke Spartan power and established Achaean dominance in the Peloponnese.

Philopoemen captured Sparta and forced it to join the Achaean League. He dismantled the Spartan walls, abolished the Lycurgan constitution, and imposed Achaean laws. This ended Sparta's independence as a major power.

Philopoemen was captured by Messenian rebels while on campaign. He was imprisoned and forced to drink poison, dying at age 70. His death was a major blow to the Achaean League, which lost its most capable general.

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.