Xenophon accompanied the Ten Thousand, a large army of Greek mercenaries hired by Cyrus the Younger, who intended to seize the throne of Persia from his brother, Artaxerxes II. Though Cyrus' army was victorious at Cunaxa in Babylon (401 BC), Cyrus himself was killed in the battle, rendering the victory irrelevant and the expedition a failure. Stranded deep in enemy territory, the Spartan general Clearchus and most of the other Greek generals were subsequently killed or captured by treachery on the part of the Persian satrap Tissaphernes. Xenophon played an instrumental role in encouraging the Greek army of 10,000 to march north to the Black Sea. The basis of the 1979 cult classic move "The Warriors".