Complex sentence: Abd al-Malik took service with the Ottomans and was able to invade Morocco with the help of a Ottoman Empire force of 10,000 soldiers dispatched from Algiers in 1576, and achieve the Capture of Fez.
Split into simpler sentences: Abd al-Malik took service with the Ottomans. He was then able to invade Morocco with the help of a Ottoman Empire force of 10,000 soldiers dispatched from Algiers in 1576, and achieve the Capture of Fez.