His new book is Warriors of God: Richard the Lionheart and Saladin in the Third Crusade (Doubleday). It's the story of the battle for the Holy Land in the late 12th century. It begins as a dual biography of Saladin, the Sultan of Egypt, Syria, Arabia and Mesopotamia, and Richard I, King of England, known as the Lionheart. The two men led the battling Islamic and Christian armies. James Reston is also the author of twelve books, including The Last Apocalypse and Galileo: A Life. He is currently a scholar in residence at the Library of Congress.