 The Assyrian king Sennacherib, tried and failed to conquer Judah.Assyrian records say he leveled 46 walled cities and besieged Jerusalem, leaving after receiving tribute.During the reign of Hezekiah (c. 716–687 BCE) a notable increase in the power of the Judean state is reflected by archaeological sites and findings such as the Broad Wall and the Siloam Tunnel in Jerusalem.