The Romans designed the testudo formation, which was formidable against armies consisting solely of mounted archers, reason for which the Parthians and later on the Sassanid Persians would employ cataphracts, which in combination with mounted archers caused the Roman legions to lose many important battles.
The Romans designed the testudo formation reason for which the Parthians would employ cataphracts. The Romans designed the testudo formation reason for which later on the Sassanid Persians would employ cataphracts. Cataphracts in combination with mounted archers caused the Roman legions. This was to lose many important battles. The testudo formation was formidable against armies. These armies were consisting solely of mounted archers.