Which Muslim leader led the military campaign against crusaders?

Saladin was the first sultan of Egypt and Syria and the founder of the Ayyubid dynasty. A Sunni Muslim of Kurdish ethnicity, Saladin led the Muslim military campaign against the Crusader states in the Levant. At the height of his power, his sultanate included Egypt, Syria, Upper Mesopotamia, the Hejaz, Yemen and other parts of North Africa.