Caesar's first visit was very brief. Before he had got far inland a storm destroyed half his ships, so he hastily repaired the rest and got back before he was cut off altogether. You can read Caesar's account of his invasion of Britain. The following year he started earlier in the summer and brought over a larger force. He pushed his way into what is now Hertfordshire, where he won a battle against a British chief named Cassivelaunus. But he was again recalled by a mishap to his fleet- this time an attack by the natives. He therefore accepted a promise of tribute from the local chiefs and returned to Gaul. He never came again. For the next few years he was engaged in a war with his leading rival, Pompey; and then, just as he was on the point of becoming Emperor, he was assassinated by political opponents 10 years after his first visit to Britain.