Crusades: Jihad is the third part of Crusades with Terry Jones. He describes how the crusaders lost Jerusalem in 1144 to Zengi, the Arab leader. A second crusade fell foul of Zengi’s son, Nur el-Din, who planned to surround the crusaders by gaining control of Egypt. For this he employed a Kurdish general – Shirkuh – and his nephew Saladin. After Nur el-Din’s mysterious death, Saladin succeeded him in Damascus, a daunting figure who was wholly committed to the jihad, or holy war.