What cause balian to flee to join godfrey on crusade?

Balian of Ibelin fled to join Godfrey of Bouillon on the Crusade primarily due to the pressures of the political and military situation in the region. After the fall of Jerusalem in 1187, Balian sought to regain his status and influence by aligning with the Crusaders. Additionally, the desire to protect Christian holy sites and the potential for personal glory and land acquisition motivated his decision to join the campaign. Ultimately, Balian's actions were driven by a combination of duty, ambition, and the turbulent circumstances of the time.