would be very afraid. The strategy worked; the Lydian cavalry was routed. Cyrus defeated and captured Croesus. Cyrus occupied the capital at Sardis, conquering the Lydian kingdom in 546 BC. According to Herodotus, Cyrus the Great spared Croesus's life and kept him as an advisor, but this account conflicts with some translations of the contemporary Nabonidus Chronicle (the King who was himself subdued by Cyrus the Great after conquest of Babylonia), which interpret that the king of Lydia was slain. Before returning to the capital, Commagene was incorporated into Persia in 546 BCE. Later, a Lydian named Pactyas was entrusted by Cyrus the Great to send Croesus's treasury to Persia. However, soon after Cyrus's departure, Pactyas hired mercenaries and caused an uprising in Sardis, revolting against the Persian satrap of Lydia, Tabalus. With recommendations from Croesus that he should turn the minds of the Lydian people to luxury, Cyrus sent Mazares, one of his commanders, to subdue the insurrection but demanded that Pactyas be returned alive. Upon Mazares's arrival, Pactyas fled to Ionia, where he had hired more mercenaries. Mazares marched his troops into the Greek country and subdued the cities of Magnesia and Priene. The end of Pactyas is unknown, but after capture, he was probably sent to Cyrus and put to death after a succession of tortures. Mazares continued the conquest of Asia Minor but died of unknown causes during his campaign in Ionia. Cyrus sent Harpagus to complete Mazares's conquest of Asia Minor. Harpagus captured Lycia, Cilicia and Phoenicia, using the technique of building earthworks to breach the walls of besieged cities, a method unknown to the Greeks. He ended his conquest of the area in 542 BC and returned to Persia. Eastern Campaigns After the conquest of Lydia, Cyrus campaigned at the east around 545 BC to 540 BC. Cyrus first tried to campaign against Gedrosia, however was decisively defeated and had to leave the land. The land of Gedrosia was most likely under the reign of Darius I. After the failed attempt in Gedrosia, Cyrus attacked in the regions of Bactria, Arachosia, Sogdia,Saka, Chorasmia, Margiana and other provinces in the east. In 533 BC, Cyrus the Great crossed the Hindu Kush mountains and collected tribute from the Indus cities. Thus, Cyrus probably had vassalage in India. Cyrus then returned to camp near Babylon due to unrest in Babylon. Neo-Babylonian Empire By the year 540 BC,