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Rh by brigades fanwise from Vercelli along the Sesia and Po to Vaccarizza, two thirds massed in a central position about Mortara. There was still no information of the enemy’s distribution, except what was forwarded from Vienna or gathered by the indefatigable Urban’s division, which moved from Milan to Biella, thence to Brescia and Parma, and back to Lombardy in search of revolutionary bands, and the latter’s doings in the nature of things could not afford any certain inferences as to the enemy’s regular armies.

On the side of the allies, the Piedmontese were grouped on the 1st of May in the fortified positions selected for them by Canrobert about Valenza-Casale-Alessandria. The French III. corps arrived on the 2nd and 3rd and the IV. corps on the 7th at Alessandria from Genoa. Unhampered by Gyulai’s offensive, though at times and places disquieted by his minor reconnaissances, the allies assembled until on the 16th the French were stationed as follows: I. corps, Voghera and Pontecurone, II., Sale and Bassignana, III., Tortona, IV., Valenza, Guard, Alessandria, and the king’s army between Valenza and Casale. The V. French corps under Prince Napoleon had a political mission in the duchies of middle Italy; one division of this corps, however, followed the main army. On the eve of the first collision the emperor Napoleon, commanding in chief, had in hand about 100,000 French and about 60,000 Sardinian troops (not including Garibaldi’s enlisted volunteers or the national guard). Gyulai’s II. Army was nominally of nearly equal force to that of the allies, but in reality it was only about 106,000 strong in combatants.

The first battle had no relation to the strategy contemplated by the emperor, and was still less a part of the defence scheme framed by Gyulai. The latter, still pivoting on Mortara, had between the 14th and 19th drawn his army somewhat to the left, in proportion as more and more of

the French came up from Genoa. He had further ordered a reconnaissance in force in the direction of Voghera by a mixed corps drawn from the V., Urban’s division and the IX. (the last belonging to the I. Army). The saying that “he who does not know what he wants, yet feels that he must do something, appeases his conscience by a reconnaissance in force,” applies to no episode more forcibly than to the action of Montebello (20th May) where Count Stadion, the commander of the V. corps, not knowing what to reconnoitre, engaged disconnected fractions of his available 24,000 against the French division of Forey (I. corps), 8000 strong, and was boldly attacked and beaten, with a loss of 1400 men against Forey’s 700.

Montebello had, however, one singular result: both sides fell back and took defensive measures. The French headquarters were already meditating, if they had not actually resolved upon, a transfer of all their forces from right to left, to be followed by a march on Milan

(a scheme inspired by Jomini). But the opening of the movement was suspended until it became quite certain that Stadion’s advance meant nothing, while Gyulai (impressed by Forey’s aggressive tactics) continued to stand fast, and thus it was not until the 28th that the French offensive really began. The infantry of the French III. corps was sent by rail from Pontecurone to Casale, followed by the rest of the army, which marched by road. To cover the movement D’Autemarre’s division of Prince Napoleon’s corps (V.) was posted at Voghera and one division of the king’s army remained at Valenza. The rest of the Piedmontese were pushed northward to join Cialdini’s division which was already at Vercelli. The emperor’s orders were for Victor Emmanuel to push across the Sesia and to take

post at Palestro on the 30th to cover the crossing of the French at Vercelli. This the king carried out, driving back outlying bodies of the enemy in spite of a stubborn resistance and the close and difficult character of the country. Hearing of the fighting, Gyulai ordered the recapture of Palestro by the II. corps, but the Sardinians during the night strengthened their positions and the attack (31st) was repulsed with heavy loss. These two initial successes of the allies, the failures in Austrian tactics and leadership which they revealed, and the fatigues and privation to which indifferent staff work had exposed his troops, combined to confirm Gyulai in his now openly expressed intention of “basing his defensive on the Quadrilateral.” And indeed his only alternatives were now to fall back or to concentrate on the heads of the French columns as soon as they had passed the Sesia about Vercelli. Faithful to his view of the situation he adopted the former course (1st June). The retreat began on the 2nd, while the French were still busied in closing up. Equally with the Austrians, the French were the victims of a system of marching and camping that, by requiring the tail of the columns to close up on the head every evening, reduced the day’s net progress to 6 or 7 m., although the troops were often under arms for fourteen or fifteen hours. The difference between the supreme commands of the rival armies lay not in the superior generalship of one or the other, but in the fact that Napoleon III. as sovereign knew what he wanted and as general pursued this object with much energy, whereas Gyulai neither knew how far his government would go nor was entire “master in his own house.”

The latter became very evident in his retreat. Kuhn, the chief of staff, who was understood to represent the views of the general staff in Vienna, had already protested against Gyulai’s retrograde movement, and on the 3rd Hess appeared from Vienna as the emperor’s direct representative

and stopped the movement. It was destined to be resumed after a short interval, but meanwhile the troops suffered from the orders and counter-orders that had marked every stage in the Austrian movements and were now intensified instead of being removed by higher intervention. Meanwhile (June 1-2) the allies had regrouped themselves east of the Sesia for the movement on Milan. The IV. corps, driving out an Austrian detachment at Novara, established itself there, and was joined by the II. and Guard. The king’s army, supported by the I. and III. corps, was about Vercelli, with cavalry far out to the front towards Vespolate. From Novara, the emperor, who desired to give his troops a rest-day on the 2nd, pushed out first a mixed reconnaissance and then in the afternoon two divisions

to seize the crossing of the Ticino, Camou’s of the Guard on Turbigo, Espinasse’s of the II. corps on San Martino. Further the whole of the Vercelli group was ordered to advance on the 3rd to Novara and Galliate, where Napoleon would on the 4th have all his forces, except one division, beyond Gyulai’s right and in hand for the move on Milan. The division sent to Turbigo bridged the river and crossed in the night of the 2nd/3rd, that at San Martino (on the main road) occupied the bridge-head and also the river bridge itself, though the latter was damaged. Espinasse’s division here was during the night replaced by a Guard division and went to join a growing assembly of troops under General MacMahon, which established itself at Turbigo and Robecchetto on the morning of the 3rd. Lastly, in order to make sure that no attack was impending from the direction of Mortara, Napoleon sent General Niel with a mixed reconnoitring force thither, which returned without meeting any Austrian forces—fortunately for itself, if the fate of the “reconnaissance in force” at Montebello proves anything.

The centre of gravity was now at Buffalora, a village on the main Milan road at the point where it crosses the Naviglio Grande. Here, on the night of the 1st, Count Clam-Gallas, commanding the Austrian I. corps (which had just arrived in Italy and was to form part of the future I. Army) had posted a division, with a view to occupying the bridge-head of San Martino. On inspecting the latter Clam-Gallas concluded that it was indefensible, and, ordering the San Martino road and railway bridges to be destroyed (an order