An army of four legions and approximately 20,000 auxiliaries, commanded by senator Aulus Plautius, landed at Richborough, Kent. The Romans met a large army of Britons, under the Catuvellauni kings Caratacus and his brother Togodumnus, on the River Medway, Kent. The Britons were defeated in a two-day battle, then again shortly afterwards on the Thames. Togodumnus died and Caratacus withdrew to more defensible terrain to the west.