The Siege of Arqa occurred in 1280 BC during the Egyptian conquest of the Levant.
In 1281 BC, following the Egyptian capture of Sumura from the Amorites, the Egyptians bribed the Amorite noble Ibiranu to defect and bring the city of Qadesh over with him. This endangered the new Amorite capital of Arqa, which was promptly besieged by Prince Amun-her-khepeshef's 1,068-strong Egyptian army. After an initial sortie attempt which left 6 Amorites dead and no Egyptians harmed, the Egyptians assaulted the city, losing 166 soldiers in the process. The Egyptian victory at Arqa, coupled with their new peace treaty with Phoenicia, decisively turned the tide of the war against the Amorites, who went on to reject Egyptian peace overtures due to their desire for revenge.