Tammarit, finding himself little more than puppet-king in the hands of the Assyrians, formed a plot to massacre all the foreign troops left to garrison this country, and so to make himself an independent monarch.

His intentions, however, were discovered, and the plot failed.

The Assyrians seized him, put him in bonds, and sent him to Nineveh.

Western Elam passed under purely military rule, and suffered, it is probable, extreme severities.
Under these circumstances, Umman-aldas took heart, and made ready, in the fastnesses to which he had fled, for another and a final effort.
Having levied a vast army, he, in the spring of the next year, made himself once more master of Bit-Imbi, and, establishing himself there, prepared to resist the Assyrians.

Their forces shortly appeared; and, unable to hold the place against their assaults, Umman-aldas evacuated it with his troops, and fought a retreating fight all the way back to Susa, holding the various strong towns and rivers in succession.
Gallant, however, as was his resistance it proved ineffectual.