Many similar battles were fought between the succeeding Sultanate of Adal and the Solomonids, with both sides achieving victory and suffering defeat. During the protracted Ethiopian-Adal War (1529–1559), Imam Ahmad ibn Ibrahim al-Ghazi defeated several Ethiopian Emperors and embarked on a conquest referred to as the "Futuh Al-Habash" ("Conquest of Abyssinia"), which brought three-quarters of Christian Abyssinia under the power of the Muslim Adal Sultanate. Al-Ghazi's forces and their Ottoman allies came close to extinguishing the ancient Ethiopian kingdom, but the Abyssinians managed to secure the assistance of Cristóvão da Gama's Portuguese troops and maintain their domain's autonomy. However, both polities in the process exhausted their resources and manpower, which resulted in the contraction of both powers and changed regional dynamics for centuries to come. Many historians trace the origins of hostility between Somalia and Ethiopia to this war. Some scholars also argue that this conflict proved, through their use on both sides, the value of firearms such as the matchlock musket, cannons and the arquebus over traditional weapons.