Several times the Neapolitans attempted to advance, urged on by their officers; but the skirmishing line in their front was strengthened from the reserves whenever they did so, until the whole of the Garibaldians, with the exception of a thousand of the steadiest troops, were engaged, and an incessant fire was maintained against the heavy ranks of the enemy, whose artillery produced but little effect against their almost unseen foes. For three hours the conflict continued; then, as the Garibaldian reserve advanced, the confusion among the enemy reached a point at which it could no longer be controlled, and Ferdinands army fled like a flock of sheep. Garibaldi and his staff had exposed themselves recklessly during the fight, riding about among their troops, encouraging them, and warning them not to be carried away by their impetuosity into making an attack, until the enemy were thoroughly shaken and the orders issued for a general charge.
A heavy fire was maintained upon the staff by the Neapolitans; and it seemed to them that Garibaldi had a charmed life, for although several of the staff fell, he continued to ride up and down as if altogether oblivious of the rain of bullets. He did not, however, escape unscathed, being wounded both in the hand and foot. The fugitives did not halt until they had crossed the frontier into Neapolitan territory. The Garibaldians remained for two or three days at Palestrina; and seeing that the Neapolitans showed no signs of an intention to advance again, returned by a rapid march to Rome.
Mazzinis efforts had been to some extent successful. The French Assembly declared that for France to aid in suppressing a people determined to obtain their freedom was altogether in contradiction with the condition on which the republic had been instituted, and sent M. de Lesseps as an envoy to Rome. Napoleon, however, was of opinion that the reverse to the French arms must be wiped out, and on his own authority despatched large reinforcements to Oudïnot.
To the indignation of Garibaldis friends and of the greater part of the population of Rome, it was found, on the return of the force to the capital, that, in spite of the brilliant successes that had been gained, Mazzini and the demagogues had superseded him in his command, and had appointed Colonel Roselli over his head. This step was the result of their jealousy of the popularity that Garibaldi had gained. His friends advised him not to submit to so extraordinary a slight; but the general simply replied that a question of this kind had never troubled him, and that he was ready to serve, even as a common soldier, under any one who would give him a chance of fighting the enemy of his country. On the 14th the Neapolitan army again advanced and occupied Palestrina; and the Roman army, now ten thousand strong, marched out on the 16th. Garibaldi, with two thousand men, moved in advance. Although Roselli was nominally in command of the army, he was conscious of Garibaldis greater abilities, and deferred, on all points, to the opinion of the man who was regarded by all as being still their Commander-in-chief.
When within two miles of Velletri Garibaldi met a strong column of Neapolitans; these, however, after but a slight resistance, took to flight, and shut themselves up in the town. Garibaldi sent back for reinforcements, but none arrived until too late in the day for the attack to be made; and in the morning it was found that the enemy had evacuated the place, the soldiers being so cowed by their superstitious fear of Garibaldi that the officers in vain attempted to rally them, and they fled in a disorderly mob. The panic reached the other portion of the army, and before morning the whole had again crossed the frontier. Garibaldi, at the head of his division, followed them up; and receiving authority to carry the war into the enemys country, was marching upon Naples, when he was recalled in all haste to aid in the defence of Rome, Oudïnot having given notice, in spite of a treaty agreed upon between M. de Lesseps, on the part of the French Assembly, and Mazzini, that he would attack Rome on Monday, June 4th.
Oudïnot was, however, guilty of an act of gross treachery, for, relying upon his intimation, the city was lulled into a sense of security that no attack would be made until the day named, whereas before daybreak on the 3rd his troops stole up and took possession of the buildings just outside the gate of San Pancrazio, and, before the Roman troops could assemble, captured the Porta Molle, after a desperate resistance by a few men who had gathered together on the alarm being given. The firing was the first intimation that Rome received of the treacherous manœuvre of Oudïnot. Again the church bells pealed out, and the populace rushed to defend their walls. Garibaldi felt that the occupation by the enemy of two great villas, a short distance from the wall, would enable them to place their batteries in such close proximity to the San Pancrazio gate that it was necessary at all hazards to recapture them; and, with his brave Lombard volunteers, he sallied out and attacked the French desperately.
All day long the fight continued, both parties being strongly reinforced from time to time; but in fighting of this kind the discipline of the French soldiers, and the military knowledge of their officers, gave them a great advantage over the Italians, who fought with desperate bravery, but without that order and community of effort essential in such a struggle. In vain did Garibaldi and Colonel Medici, the best of his officers, expose themselves recklessly in their endeavours to get their men to attack in military order and to concentrate their efforts at the given point; in vain did the soldiers show a contempt for death beyond all praise. When night fell the French still held possession of the outposts they had gained, and the Italians fell back within the walls.
That night Garibaldi held a council of war, at which Captain Percival was present. The latter and Colonel Medici were strongly of opinion that a renewal of the fighting of that day would be disastrous. The loss had already been very great, and it had been proved that, however valiantly they fought, the volunteers were unable to wrest the strong positions held by a superior force of well-disciplined men; for the French army now numbered forty thousand, while that of the defenders was but twelve thousand, and of these more than half had joined within the last three weeks. A series of such failures as those they had encountered would very quickly break the spirit of the young troops, and would but precipitate the end. These opinions prevailed, and it was decided that for the present they should remain on the defensive, maintaining a heavy cannonade from the walls, and making occasional sorties to harass the besiegers. In the meantime, the bridge across the Tiber should be destroyed, and, if possible, mines should be driven to blow up the batteries that would be erected by the French under cover of the positions they held.
These tactics were followed out. The French engaged upon the erection of the batteries were harassed by a continuous cannonade. Sorties were frequently made, but these were ere long abandoned; the loss suffered on each occasion being so heavy that the troops no longer fought with the courage and enthusiasm that had so animated them during the first days fighting. The attempt to blow up the bridge across the river by means of a barge loaded with explosives failed, and none of the defenders possessed the knowledge that would have enabled them to blow in the centres of the arches. The mines were equally unsuccessful, as the French countermined, and by letting in the water formed a streamlet that ran into the Tiber, filled the Italian works, and compelled the defenders to desist from their labours. Nevertheless, the progress of the siege was hindered; and although it was certain that the city, if unaided, must fall ere long, Mazzini still clung to the hope that the treaty made by Lesseps and carried by him to Paris would be recognised. This last hope was crushed by the arrival of a French envoy with the declaration that the French Government disavowed any participation in the Convention signed by M. de Lesseps.