At the same time, Assyrian king Sargon II was destroying the Philistine army in the Ashdod area and an 8th Century wall has been unearthed by the harbor. The prophet Isaiah (ch.20) warned Judah’s king Hezekiah to stay out of the fight – advice, which Hezekiah heeded. (Is history repeating?)
http://www.nbcnews.com/science/ancient-wall-israel-matches-bibles-tale-assyrian-attack-6C10953508