A participant of the 1798 Egyptian expedition, he fought in the Battle of the Pyramids, became governor of Upper Egypt, and advanced with his troops into Nubia. He also fought back the enemy cavalry at the battle of Heliopolis. He played a major role in the taking of Bulal and Cairo. However, with the departure of Napoleon and the arrival of British troops under General Ralph Abercromby the situation changed for the French and the victories ended. After string of British victories Beliard became trapped in Cairo was besieged by a combined British and Ottoman force culminating with Belliard's surrender on 22 June 1801.