The situation of Antony having now become precarious, from the union of Octavius with the party of the Senate, and the defection of two legions, he abruptly quitted the city, and placing himself at the head of his army, marched into Cisalpine Gaul, which, since the death of Cæsar, had been occupied by Decimus Brutus, one of the conspirators. The field being thus left clear for Cicero, and the Senate being assembled, he pronounced the third Philippic, of which the great object was to induce it to support Brutus, by placing an army at the disposal of Octavius, along with the two Consuls elect, Hirtius and Pansa. He exhorts the Senate to this measure, by enlarging on the merits of Octavius and Brutus, and concludes with proposing public thanks to these leaders, and to the legions which had deserted the standard of Antony. From the Senate, Cicero proceeded directly to the Forum, where, in his fourth Philippic, he gave an account to the people of what had occurred, and explained to them, that Antony, though not nominally, had now been actually declared the enemy of his country. This harangue was so well received by an audience the most numerous that had ever listened to his orations, that, speaking of it afterwards, he declares he would have reaped sufficient fruit from the exertions of his whole life, had he died on the day it was pronounced, when the whole people, with one voice and mind, called out that he had twice saved the republic(330). Brutus being as yet unable to defend himself in the field, withdrew into Modena, where he was besieged by Antony. Intelligence of this having been brought to Rome, Cicero, in his fifth Philippic, endeavoured to persuade the Senate to proclaim Antony an enemy of his country, in opposition to Calenus, who proposed, that before proceeding to acts of hostility, an embassy should be sent for the purpose of admonishing Antony to desist from his attempt on Gaul, and submit himself to the authority of the Senate. After three days’ successive debate, Cicero’s proposal would have prevailed, had not one of the Tribunes interposed his negative, in consequence of which the measure of the embassy was resorted to. Cicero, nevertheless, before any answer could be received, persisted, in his sixth and seventh Philippics, in asserting that any accommodation with a rebel such as Antony, would be equally disgraceful and dangerous to the republic. The deputies having returned, and reported that Antony would consent to nothing which was required of him, the Senate declared war against him—employing, however, in their decree, the term tumult, instead of war or rebellion. Cicero, in his eighth Philippic, expostulated with them on their timorous and impolitic lenity of expression. In the ninth Philippic, pronounced on the following day, he called on the Senate to erect a statue to one of the deputies, Servius Sulpicius, who, while labouring under a severe distemper, had, at the risk of his life,