Setting the scene
By 1187, Saladin (Salah ad-Din Yusuf ibn Ayyub) had unified Egypt and Syria under his Ayyubid dynasty, encircling the Crusader states. The Kingdom of Jerusalem was divided between King Guy of Lusignan and his rival Raymond III of Tripoli. The crisis was triggered by Reynald of Châtillon, who broke a truce by attacking a Muslim caravan and threatening Mecca. Saladin declared jihad and invaded the kingdom in June 1187, besieging Tiberias. Guy, against Raymond's advice, marched his army across waterless terrain to relieve it.
What happened
On July 4, 1187, at the Horns of Hattin near the Sea of Galilee, Saladin's forces trapped the Crusader army. The crusaders, suffering from thirst and heat, were surrounded, harassed by horse archers, and enveloped in smoke from fires Saladin's men set. The army was annihilated—King Guy, Reynald, and the Grand Masters of the Templars and Hospitallers were captured. Saladin personally executed Reynald for his crimes, but treated Guy chivalrously. The True Cross, carried into battle, was lost. With the kingdom's army destroyed, Saladin swept through Crusader cities.
Why it still matters
Jerusalem surrendered on October 2, 1187, after a brief siege. Unlike the 1099 massacre, Saladin negotiated terms: Christians could ransom themselves or leave safely. He allowed Christians to retain holy sites and treated inhabitants with relative mercy, enhancing his reputation in both Muslim and Western sources. The fall of Jerusalem shocked Europe and prompted the Third Crusade (1189-1192), led by Richard the Lionheart, Philip Augustus, and Frederick Barbarossa. Though Richard failed to retake Jerusalem, he secured a treaty allowing Christian pilgrimage. Saladin's victory restored Muslim control of Jerusalem for the next 730 years, until 1917.【7292955483299729605†L5-L7】【7292955483299729605†L30-L32】
Background
The loss triggered the Third Crusade. Even centuries later, this episode remains a reference point for how empires rise, fracture, and transform.