However, the peace with Alba did not long continue. The dissatisfaction of the populace at the fortune of the state having been intrusted to three soldiers, perverted the wavering mind of the dictator; and since straightforward measures had not turned out well, he began to conciliate the affections of the populace by treacherous means. Accordingly, as one who had formerly sought peace in time of war, and was now seeking war in time of peace, because he perceived that his own state possessed more courage than strength, he stirred up other nations to make war openly and by proclamation: for his own people he reserved the work of treachery under the show of allegiance. The Fidenates, a Roman colony,[26] having taken the Veientes into partnership in the plot, were instigated to declare war and take up arms under a compact of desertion on the part of the Albans. When Fidenae had openly revolted, Tullus, after summoning Mettius and his army from Alba, marched against the enemy. When he crossed the Anio, he pitched his camp at the conflux of the rivers.[27] Between that place and Fidenae, the army of the Veientes had crossed the Tiber. These, in the line of battle, also occupied the right wing near the river; the Fidenates were posted on the left nearer the mountains. Tullus stationed his own men opposite the Veientine foe; the Albans he posted to face the legion of the Fidenates. The Alban had no more courage than loyalty. Therefore neither daring to keep his ground, nor to desert openly, he filed off slowly to the mountains. After this, when he supposed he had advanced far enough, he led his entire army uphill, and still wavering in mind, in order to waste time, opened his ranks. His design was, to direct his forces to that side on which fortune should give success. At first the Romans who stood nearest were astonished, when they perceived their flanks were exposed by the departure of their allies; then a horseman at full gallop announced to the king that the Albans were moving off. Tullus, in this perilous juncture, vowed twelve Salii and temples to Paleness and Panic. Rebuking the horseman in a loud voice, so that the enemy might hear him plainly, he ordered him to return to the ranks, that there was no occasion for alarm; that it was by his order that the Alban army was being led round to fall on the unprotected rear of the Fidenates. He likewise commanded him to order the cavalry to raise their spears aloft; the execution of this order shut out the view of the retreating Alban army from a great part of the Roman infantry. Those who saw it, believing that it was even so, as they had heard from the king, fought with all the greater valour. The alarm was transferred to the enemy; they had both heard what had been uttered so loudly, and a great part of the Fidenates, as men who had mixed as colonists with the Romans, understood Latin. Therefore, that they might not be cut off from the town by a sudden descent of the Albans from the hills, they took to flight. Tullus pressed forward, and having routed the wing of the Fidenates, returned with greater fury against the Veientes, who were disheartened by the panic of the others: they did not even sustain his charge; but the river, opposed to them in the rear, prevented a disordered flight. When their flight led thither, some, shamefully throwing down their arms, rushed blindly into the river; others, while lingering on the banks, undecided whether to fight or flee, were overpowered. Never before was a more desperate battle fought by the Romans.