information:extraction, stylistic:tone
Ethiopian–Adal War

The Ethiopian–Adal War (1529–1543) was a military conflict between the Abyssinians and the Adal Sultanate. The Imam Ahmad ibn Ibrahim al-Ghazi came close to extinguishing the ancient realm of Abyssinia, and forcibly converting all of its surviving subjects to Islam. The intervention of the European Cristóvão da Gama attempted to help to prevent this outcome, but he was killed by al-Ghazi. However, both polities exhausted their resources and manpower in this conflict, allowing the northward migration of the Oromo into their present homelands to the north and west of Addis Ababa. Many historians trace the origins of hostility between Somalia and Ethiopia to this war.