Elated by three easy victories, Lefebvre thought that there was nothing more to do but to enter Saragossa in triumph. He was much deceived: the citizens were standing at bay behind their flimsy defences, having recovered in a single night from the dismay caused by the arrival of the broken bands who had fought at Alagon. The military conditions were not unlike those which Moncey had to face in another region, a fortnight later: Saragossa like Valencia lies in an extensive plain, with its northern side washed by the waters of the Ebro, and its eastern by those of the shallow and fordable Huerba: but its southern and western fronts are exposed to attack from the open. It was surrounded by a brick wall of ten to twelve feet high, interrupted in several places by convents and barracks whose blank back-faces continued the line of the _enceinte_[114]. Inside the wall were the crowded lanes in which dwelt the 60,000 citizens, a tangle of narrow streets save the one broad Coso which intersects the place from east to west. The houses were mostly solid and lofty structures of brick and stone, with the heavy barred windows and doors usual in Spain. The strength, such as it was, of Saragossa consisted not in its outer shell, but in the closely packed houses, convents, and churches, each of which might serve at need as a small fortress. Many of them were solid enough to resist any form of attack save that of being battered by artillery. When barricades had been thrown across the lanes from side to side, each square of buildings would need to be assaulted and captured piecemeal. But none of the French officers who arrived in front of Saragossa on June 15, 1808, had any conception that the problem about to be presented to them was that of street-fighting carried on from house to house. There had been many sieges since the war of the French Revolution began, but none carried on in this manner. In Italy or Germany no one had ever heard of a city which tried, for want of bastions and curtains, to defend itself by barricades: such places always saved themselves by an obvious and blameless surrender. [114] The chief of these buildings inserted in the wall were the convents or Santa Engracia and the Misericordia, and the cavalry barracks.