 In the beginning of the 18th century BC, Urshu allied with Yamhad against Yahdun-Lim of Mari.Relations with Assyria were also strained, and men of Urshu were summoned by Yapah-Adad and his Habiru to attack the lands of Shamshi-Adad I of Assyria.The texts of Mari mentions a conflict between Urshu and Carchemish