The Battle of Hattin: Disunity, Zeal, and the Loss of Jerusalem is a historical, philosophical, and Masonic examination of one of the most consequential battles of the Crusades—the Battle of Hattin in 1187.

Written by Abdul Malik M. McHenry, Past Eminent Commander of St. Maurice Commandery No. 6, this work moves beyond the battlefield to examine the failures of leadership, fractured loyalties, reckless zeal, and strategic misjudgments that contributed to the destruction of the Crusader field army and ultimately the surrender of Jerusalem to Saladin.

Through the lens of York Rite Masonry and Christian chivalric symbolism, McHenry asks a deeper question: What can the fall of a medieval kingdom teach the modern Knight about leadership, unity, discipline, humility, and the responsibilities of command?

The book examines Saladin and the consolidation of Muslim power, the divisions within the Kingdom of Jerusalem, the Knights Templar and Hospitallers, Reynald of Châtillon, Raymond III of Tripoli, Balian of Ibelin, the loss of the True Cross, and the dramatic aftermath of Hattin. It also explores Jerusalem's significance within Christianity, Islam, Judaism, and Masonic symbolism, while carefully considering Sufism and Islamic chivalry without claiming an unsupported historical lineage between Sufi traditions, the medieval Templars, and modern Freemasonry.