Memnon of Rhodes
Orontobates and Memnon of Rhodes entrenched themselves in Halicarnassus. Alexander had sent spies to meet with dissidents inside the city, who had promised to open the gates and allow Alexander to enter. When his spies arrived, however, the dissidents were nowhere to be found. A small battle resulted, and Alexander's army managed to break through the city walls. Memnon, however, now deployed his catapults, and Alexander's army fell back. Memnon then deployed his infantry, and shortly before Alexander would have received his first defeat, his infantry managed to break through the city walls, surprising the Persian forces. Memnon, realizing the city was lost, set fire to it and withdrew with his army. Strong winds caused the fire to destroy much of the city.