The military revival of Assyria was as sudden as had been its decline. In B.C. 885, Assur-nazir-pal II. ascended the throne. His reign of twenty-five years was passed in constant campaigns, in ferocious massacres, and the burning of towns. In both his inscriptions and his sculptures he seems to gloat over the tortures he inflicted on the defeated foe. Year after year his armies marched out of Nineveh to slaughter and destroy, and to bring back with them innumerable captives and vast amounts of spoil. Western Asia was overrun, tribute was received from the Hittites and from Phoenicia, and Armenia was devastated by the Assyrian forces as far north as Lake Van. The policy of Assur-nazir-pal was continued by his son and successor Shalmaneser II., with less ferocity, but with more purpose (B.C. 860-825). Assyria became dominant in Asia; its empire stretched from Media on the east to the Mediterranean on the west. But it was an empire which was without organisation or permanency. Every year a new campaign was needed to suppress the revolts which broke out as soon as the Assyrian army was out of sight, or to supply the treasury with fresh spoil. The campaigns were in most cases raids rather than the instruments of deliberately planned conquest. Hence it was that the Assyrian monarch found himself checked in the west by the petty kings of Damascus and the neighbouring states. Ben-Hadad and Hazael, it is true, were beaten again and again along with their allies, while Omri of Israel offered tribute to the invader, like the rich cities of Phoenicia; but Damascus remained untaken and its people unsubdued. The war with Assyria, however, saved Israel from being swallowed up by its Syrian neighbour. Hazael's strength was exhausted in struggling for his own existence; he had none left for the conquest of Samaria. Shalmaneser himself, towards the end of his life, was no longer in a position to attack others. A great revolt broke out against him, headed by his son Assur-dain-pal, the Sardanapallos of the Greeks, who established himself at Nineveh, and there reigned as rival king for about seven years. His brother Samas-Rimmon, who had remained faithful to his father, at last succeeded in putting down the rebellion. Nineveh was taken, and its defenders slain. Henceforth Samas-Rimmon reigned with an undisputed title.