The siege of the Byzantine-held city was long and challenging due to its formidable walls, which are among the largest in the world.

The city was taken on May 27, 639 , just ten years after the conquest of Mecca. Key Figures and the Siege

The conquest of Diyarbakır (Amed) in 639 AD stands as a cornerstone of Islamic history in Anatolia, transforming the city into a spiritual center often called the . Historical Background

Under the Caliphate of Umar ibn al-Khattab , the conquest was entrusted to the commander Iyad bin Ghanm .

The Islamic forces consisted of approximately 8,000 soldiers, notably including nearly 1,000 Companions (Sahaba) of the Prophet Muhammad.