The Ethiopian–Adal War, also known as the Abyssinian–Adal War and Futūḥ Al-Ḥabaša, was a war fought between the Christian Ethiopian Empire and the Muslim Adal Sultanate from 1529 to 1543. The Christian Ethiopian troops consisted of the Amhara, Agaw, Tigrinya, and Tigrayans, and at the closing of the war, supported by the Portuguese Empire with no less than 400 musketeers. The Adal forces were composed of Harla/Harari, Somali, Afar as well as Arab and Turkish gunmen. Both sides would see the Maya mercenaries at times join their ranks. The conflict was followed shortly by the 16th century Ottoman–Ethiopian War.