He had formed an alliance with Sanduarri, king of Kundi and Sizu, a prince of the Lebanon, probably during the time of the civil war waged between Esarhaddon and two of his brothers who disputed his succession after they had murdered his father. The two kings had sworn to each other by the names of the great gods and revolted. As soon as this struggle was over, in response to the rebellion, Esarhaddon laid siege to Sidon, which after three years of siege, in 677 BC, was finally captured, destroyed and rebuilt as Kar-Ashur-aha-iddina, the Harbour of Esarhaddon.