Final answer:
Boudica was the Celtic warrior queen who led a revolt against the Romans after they plundered her Iceni husband's territory. She represents the resistance of the Celts against Roman conquest during Caesar's time.
Step-by-step explanation:
The Celtic warrior queen who led her forces against the Roman invaders after the plunder of her husband’s Iceni territory was Boudica. Her uprising took place after the death of her husband, King Prasutagus, when the Romans failed to respect his will, which named both his daughters and the Roman emperor as his heirs. Boudica's retaliation was fierce, as she led a significant rebellion against Roman rule in Britannia. Although ultimately unsuccessful, Boudica's revolt caused substantial disruption and is a testament to the resistance faced by Rome during its expansion. The Romans, under Caesar's command, were responsible for the conquest of Gaul, which involved battles against various Celtic tribes, massively changing the Celtic way of life and integrating these regions into the Roman Empire.