General view of Area B North at the end of the 2006 excavation season with the articulated fortification system which defended the town during the Early Bronze II-III. Three parallel lines of fortification walls were brought to light: wall W.105, the inner and major city-wall; wall W.155, the outer wall; and the reinforcing buttress W.165. In the middle of wall W.105 the city-gate L.160 has been excavated; from north.