Against her and her munition. — The word is a rare one, but probably stands here for the new fortifications by which Uzziah and Hezekiah had defended Jerusalem.
Related Commentaries of Isaiah 29:7
Isaiah 29:7
7 And the multitude of all the nations that fight against Ariel, even all that fight against her and her munition, and that distress her, shall be as a dream of a night vision.