'Well, Yusuf, are you sure that you want to be a soldier?' 'I'll do my best, Uncle.' When Yusuf went to Aleppo to learn to fight under General Shirkuh, no one knew what this young man would do with his life. But years later, Yusuf became the great and chivalrous general, Saladin - the man who helped to bring Muslims together to win back the holy city of Jerusalem from the Franks. This is his story...