What does 2 Chronicles 32:1 mean?

After all this, Sennacherib, king of Assyria, invaded Judah. He set up camp outside the fortified cities, planning to break in and take them. 2 Chronicles 32:1 - Modern Text Bible

(Even after Hezekiah's faithfulness, trouble came—Assyria, the superpower of the day, threatened Judah's safety.)