Enterprising kings, like Jeroboam II., and Menahem, taking advantage of Assyria's weakness, did not content themselves with merely throwing off her yoke, but proceeded to enlarge their dominions at the expense of her feudatories.

Judging of the unknown from the known, we may assume that on the north and east there were similar defections to those on the west and south--that the tribes of Armenia and of the Zagros range rose in revolt, and that the Assyrian boundaries were thus contracted in every quarter.
At the same time, within the limits of what was regarded as the settled Empire, revolts began to occur.

In the reign of Asshur-dayan III.

(B.C.
771-753), no fewer than three important insurrections are recorded--one at a city called Libzu, another at Arapkha, the chief town of Arrapachitis, and a third at Gozan, the chief city of Gauzanitis or Mygdonia.

Attempts were made to suppress these revolts; but it may be doubted whether they were successful.