War was now declared, and the most vigorous efforts were made on both sides. The contest was to decide whether Rome should become a Latin town, or the Latins be subject to Rome. The Romans had elected to the consulship two of their most distinguished men. The Patrician Consul was, as already mentioned, T. Manlius Torquatus; his Plebeian colleague was P. Decius Mus, who had gained great renown in the recent war against the Samnites. The two Consuls marched through Samnium into Campania, and threatened Capua, thus leaving Rome exposed to the attacks of the Latins. But the Consuls foresaw that the Latins would not abandon Capua, their great acquisition; and the event proved their wisdom. The contest was thus withdrawn from the territory of Rome and transferred to Campania, where the Romans could receive assistance from the neighboring country of their Samnite allies. It was at the foot of Mount Vesuvius that the two armies met, and here the battle was fought which decided the contest. It was like a civil war. The soldiers of the two armies spoke the same language, had fought by each others' sides, and were well known to one another. Under these circumstances, the Consuls published a proclamation that no Roman should engage in single combat with a Latin on pain of death. But the son of Torquatus, provoked by the insults of a Tusculan officer, accepted his challenge, slew his adversary, and carried the bloody spoils in triumph to his father. The Consul had within him the heart of Brutus; he would not pardon this breach of discipline, and ordered the unhappy youth to be beheaded by the lictor in the presence of the assembled army. In the night before the battle a vision appeared to each Consul, announcing that the general of one side and the army of the other were doomed to destruction. Both agreed that the one whose wing first began to waver should devote himself and the army of the enemy to the gods of the lower world. Decius commanded the left wing; and when it began to give way, he resolved to fulfill his vow. Calling the Pontifex Maximus, he repeated after him the form of words by which he devoted himself and the army of the enemy to the gods of the dead and the mother earth; then leaping upon his horse, he rushed into the thickest of the fight, and was slain. The Romans gained a signal victory. Scarcely a fourth part of the Latins escaped (B.C. 340).