It was not till late in the reign of his son and successor, Tiglath-Pileser I., that any attempt was made to punish the Babylonians for their audacity.

Then, however, that monarch invaded the southern kingdom, which had passed into the hands of a king named Merodach-iddin-akhi, probably a son of Nebuchadnezzar.

After two years of fighting, in which he took Eurri-Galzu (Akkerkuf), the two Sipparas, Opis, and even Babylon itself, Tiglath-Pileser retired, satisfied apparently with his victories; but the Babylonian monarch was neither subdued nor daunted.
Hanging on the rear of the retreating force, he harassed it by cutting off its baggage, and in this way he became possessed of certain Assyrian idols, which he carried away as trophies to Babylon.

War continued between the two countries during the ensuing reigns of Merodach-shapik-ziri in Babylon and Asshur-bil-kala in Assyria, but with no important successes, so far as appears, on either side.
The century during which these wars took place between Assyria and Babylonia, which corresponds with the period of the later Judges in Israel, is followed by an obscure interval, during which but little is known of either country.

Assyria seems to have been at this time in a state of great depression.