Battle of the Medway, the first major recorded battle of the Roman invasion of Britain under the orders of the emperor Claudius. Fought in 43 ce, it is thought to have occurred at a crossing of the River Medway near the modern-day city of Rochester in Kent, England, and it raged for nearly two days.
The British force, estimated at 150,000, was led by two brothers: Togodumnus, king of the Catuvellauni, and Caratacus, a chieftain of the same tribe; fighting alongside them were elements from several other tribes. The Roman invasion force, under the command of Aulus Plautius, consisted of four legions, a force approximately 20,000 strong. Reinforcing them were another 25,000 auxiliaries, mostly Celts and Batavians, On hearing of the Roman landing at Richborough, British resistance united behind the leadership of the two brothers and, after two indecisive skirmishes in eastern Kent, the British force met the advancing Romans at the River Medway.
Cassius Dio, a Roman historian, records that the Britons were massed on marshy ground on the floodplain of the Medway. He adds that a detachment of Celtic Roman auxiliaries swam across the river and attacked the British chariot horses, surprising the Britons and causing panic. Using this initial advantage, Vespasian (a future Roman emperor) crossed the river with a large force but was unable to press home a victory. The battle continued to rage all day without any decisive result. On the second day, the Romans launched a daring attack under the command of Gnaeus Hosidius Geta, who was almost killed in the fighting that followed. However, Geta’s troops rallied around their commander and the Britons were eventually overcome, with the bulk of the British force taking flight. The fact that the battle lasted for two days indicates that it must have been a significant encounter. However, the British were not yet conquered and fell back to the River Thames, where Togodumnus was defeated, dying shortly afterward. Caratacus continued resistance until defeated at Caer Caradoc in 50 ce. He was taken to Rome to march in the triumphal parade for Claudius, who, after Caratacus delivered a stirring defense before the Roman Senate, pardoned Caratacus and provided him with property and a pension.
Apart from a small hoard of gold coins, little material evidence of the battle has been recovered, leading some historians to suggest that it took place on the south-central coast of England about 120 miles from Richborough. Remains of a commemorative arch erected by the Romans about 40 years after the battle have been found at Richborough, suggesting that the battle indeed took place there.
Losses: No reliable figures.