Although it seemed at the time that the Mongol Empire threatened to swallow all of the Muslim world, the Mongols had, in fact, reached their limit in the West. The empire would not expand any further in that direction. An army of Mamluk slaves, mostly purchased from Italian merchants who brought them from the Kipchak and Slavic people of Russia and sold them to the sultan of Egypt, moved out from Egypt and encountered a Mongol detachment at Ayn al-Jalut, the Springs of Goliath, near the Sea of Galilee in what is today Israel.