The Battle of Amba Sel was fought on 28 October 1531, between the Ethiopians under their Emperor Dawit II, and the forces of Imam Ahmad ibn Ibrahim al-Ghazi of the Adal Sultanate.
The two armies fought fiercely and bravely until Addalu fell and was promptly beheaded by the Adalite soldiers.
His men therefore fled, pursued by the Adalites who killed many Christians and took many others captives.
The land was covered with corspes and blood ran like streams according to Arab Faqīh.
Arab Faqih states that the entire land therefore embraced Islam and the Imam appointed a certain Umar as the province's governor.