As argued by Vigouroux, the two battles mentioned in the Septuagint version of the Book of Judith are a reference to the clash of the two empires in 658–657 and to Phraortes' death in battle in 653, after which Ashurbanipal continued his military actions with a large campaign starting with the Battle of the Ulaya River (652 BC) on the 18th year of this Assyrian king. Contemporary sources make reference to the many allies of Chaldea (governed by Ashurbanipal's rebel brother Shamash-shum-ukin), including the Kingdom of Israel and the Kingdom of Judah, which were subjects of Assyria and are mentioned in the Book of Judith as victims of Ashurbanipal's Western campaign.