Acre was at this moment beset by those of the Crusaders who had arrived before Richard. But their camp was itself being besieged by a great Saracen host under Sultan Saladin, who had raised all the levies of Syria, Mesopotamia, and Egypt, to relieve the beleaguered city. The landing of the hosts of England and France soon turned the tide of war, and ere long Acre fell. Richard earned and obtained the whole credit of the success by his energy and courage, while his rival Philip, by his jealous bickering with the English, merited a name for disloyalty and lukewarm zeal. It must be confessed that Richard won himself many enemies by his haughtiness and hasty temper; not only did he quarrel with Philip, but he mortally offended Leopold of Babenberg, the Duke of Austria. The German had planted his banner upon the walls of Acre as if he had taken the town himself, and Richard had it hewn down and cast into the ditch. [Sidenote: =Return of Philip.--Richard fails to reach Jerusalem.=] Less than three weeks after Acre fell, the King of France suddenly announced his intention of returning home, though nothing had yet been done to defeat Saladin or recapture Jerusalem. He left part of his army behind him under the Duke of Burgundy, and sailed off, after making a vain promise that he would not molest Richard's dominions so long as he was at the Crusade. Thus left to himself, Richard led the crusading host southward along the coast, and defeated Saladin at a pitched battle at Arsouf. He forced his way to within a few miles of Jerusalem, but, before attacking it, turned back to secure himself a base on the sea, through which he could get stores and provisions from his ships. He took Ascalon, therefore, and garrisoned it, and afterwards captured many neighbouring forts, and intercepted a great caravan which was bringing arms and stores for Saladin across the desert from Egypt. But when he wished to start again for Jerusalem, dissensions broke out in the crusading camp. The subject of dispute was the succession to the throne of Jerusalem. Richard supported Guy of Lusignan, one of his Poitevin vassals, while the French and the bulk of the other Crusaders wished to elect an Italian prince, Conrad of Montferrat. The quarrel kept the army idle till the hot season of 1092 arrived, and endured till Conrad was slain by a Saracen fanatic; then Richard moved forward, but when he had arrived within four hours' march of Jerusalem, the French portion of the army, worn out by thirst and exhaustion, refused to advance any further. Richard was forced to fall back when at the very goal, and refused even to look upon the Holy City. "My eyes shall never behold it, if my arm may not reconquer it," he cried, and, muffling his face in his cloak, he turned back towards the coast. [Sidenote: =Richard leaves Palestine.=]