Following his victory over Eumenes at Gabene, Antigonus became the most powerful man in Asia. Yet the one-eyed general's insatiable desire for even more power, combined with the envy of his rivals, meant that he soon once again found himself at war: the Third War of the Diadochi. Antigonus' enemies were powerful and many - including Cassander, Lysimachus, Ptolemy, Seleucus and Asander. The first major battle of the war was the Battle of Gaza in 312 BC, fought between Ptolemy and a new, rising star of the period - the son of Antigonus Demetrius.