Alexander next heads to Egypt. Seeing him as their salvation from Persian occupation, the people welcome him, and in 332, he is officially recognised as Pharaoh. Shortly thereafter, a small rebellion against Macedonian rule begins, led by Khabbabash, a former slave. Unwilling to tolerate any resistance, Alexander defeats and kills Khabbabash, learning that the real organiser of the rebellion is Cambyses, the former Persian satrap of Egypt. At Avaris, Alexander defeats Cambyses, and subsequently presides over victory after victory. Eventually, he reaches India. Throughout the land, rajas submit, until the only place west of the Ganges not under Alexander's control is Cathai. Traditionally a fractured tribalist region, with the arrival of Alexander, the various factions in Cathai unite under the leadership of Taxiles. At the Battle of the Hydaspes in 326, Alexander is once again victorious, defeating the Cathai resistance, and completing his conquest of the known world.