Smith's Bible Dictionary

Fenced Cities

i.e. cities fortified or defended. The fortifications of the cities of Palestine, thus regularly “fenced,” consisted of one or more walls (sometimes of thick stones, sometimes of combustible material), crowned with battlemented parapets, having towers at regular intervals, (2 Chronicles 32:5; Jeremiah 31:38) on which in later times engines of war were placed, and watch was kept by day and night in time of war. (Judges 9:45; 2 Kings 9:17; 2 Chronicles 26:9,15)