Complex sentence: He also sought co-operation with France and the Ottoman Empire, but later he gradually grew more independent of outside backers, and appealed mainly to the Egyptian people to demand the end of the British occupation.
Split into simpler sentences: He also sought co-operation with France and the Ottoman Empire. As he matured, however, he gradually grew more independent of outside backers, and appealed mainly to the Egyptian people to demand the end of the British occupation.