The Senate approved of sending a deputation; but Pompey had sworn, on leaving, that he would hold all who had not joined him as his enemies; no one, therefore, could be found willing to go. Three days were spent in unmeaning discussion, and Caesar's situation did not allow of trifling. With such people nothing could be done, and peace could be won only by the sword. By an edict of his own he restored the children of the victims of Sylla's proscription to their civil rights and their estates, the usurpers being mostly in Pompey's camp. The assembly of the people voted him the money in the treasury. Metellus, a tribune in Pompey's interest, forbade the opening of the doors, but he was pushed out of the way. Cæsar took such money as he needed, and went with his best speed to join his troops in Gaul. His singular gentleness had encouraged the opposition to him in Rome. In Gaul he encountered another result of his forbearance more practically trying. The Gauls themselves, though so lately conquered in so desperate a struggle, remained quiet. Then, if ever, they had an opportunity of reasserting their independence. They not only did not take advantage of it, but, as if they disdained the unworthy treatment of their great enemy, each tribe sent him, at his request, a body of horse, led by the bravest of their chiefs. His difficulty came from a more tainted source. Marseilles, the most important port in the western Mediterranean, the gate through which the trade of the Province passed in and out, had revolted to Pompey. Domitius Ahenobarbus, who had been dismissed at Corfinium, had been despatched to encourage and assist the townspeople with a squadron of Pompey's fleet. When Caesar arrived, Marseilles closed its gates, and refused to receive him. He could not afford to leave behind him an open door into the Province, and he could ill spare troops for a siege. Afranius and Petreius were already over the Ebro with 30,000 legionaries and with nearly twice as many Spanish auxiliaries. Yet Marseilles must be shut in, and quickly. Fabius was sent forward to hold the passes of the Pyrenees. Caesar's soldiers were set to work in the forest. Trees were cut down and sawn into planks. In thirty days twelve stout vessels, able to hold their own against Domitius, were built and launched and manned. The fleet thus extemporized was trusted to Decimus Brutus. Three legions were left to make approaches, and, if possible, to take the town on the land side; and, leaving Marseilles blockaded by sea and land, Caesar hurried on to the Spanish frontier. The problem before him was worthy of his genius. A protracted war in the peninsula would be fatal. Pompey would return to Italy, and there would be no one to oppose him there. The Spanish army had to be destroyed or captured, and that immediately; and it was stronger than Caesar's own, and was backed by all the resources of the province.