Silveira’s levies were not the only force in arms on the frontier. The populous province of the Entre-Douro-e-Minho[270], roused to tumultuous enthusiasm by the bishop of Oporto, had sent every available man, armed or unarmed, to the front. A screen of militia and regulars under General Botilho was watching the line of the lower Minho: a vast mass of _Ordenanza_, backed by a very small body of line troops lay in and about Braga, under General Bernardino Freire; another multitude was still thronging the streets of Oporto and listening to the windy harangues of the bishop. But none of these masses of armed men were sent to the aid of Silveira. He was not one of the bishop’s faction, nor was he on good terms with his colleague Freire. Neither of them showed any inclination to combine with him, and their followers, in the true spirit of provincial particularism, thought of nothing but defending their own hearths and homes, and left the Tras-os-Montes to take care of itself. Yet they had for the moment no enemy in front of them but the small French garrison of Tuy, and could have marched without any risk to join their compatriots. [270] Entre-Douro-e-Minho had a population of 500,000 souls, Tras-os-Montes only 180,000. Relying on the aid of La Romana, General Silveira had taken post at Villarelho on the right bank of the Tamega, leaving the defence of the left bank to the Spaniards, whom he supposed to be still stationed about Monterey and Verin. On the very day upon which the Army of Galicia absconded, the Portuguese general sent forward a detachment, consisting of a line regiment and a mass of peasants, to menace the flank of the French advance. This force, having crossed the Spanish frontier, got into collision with the enemy near Villaza. Since Franceschi’s horsemen and Heudelet’s infantry had turned off to the east in pursuit of La Romana, the Portuguese fell in with the leading column of Soult’s main body--a brigade of Lahoussaye’s dragoons supported by Delaborde’s division. This force they ventured to attack, but were promptly beaten off by Foy, the brigadier of the advanced guard, who routed them and captured their sole piece of artillery. The shattered column fell back on the main body at Villarelho, and then Silveira, hearing of the departure of the Spaniards, resolved to retire and to look for a defensive position which he might be able to hold by his own unaided efforts. There was none such to be found in front of Chaves, for the valley of the Tamega widens out between Monterey and the Portuguese frontier fortress, and offers no ground suitable for defence. Accordingly Silveira very prudently decided to withdraw his tumultuary army to the heights of San Pedro, a league to the south of the town, where the space between the river and the mountains narrows down and offers a short and compact line of resistance. But he waited to be driven in, and meanwhile left rear-guards in observation at Feces de