“I have always understood,” says an officer present in this quarter of the field, “that what was devised and determined on was suggested by Captain Lee; at all events the council was closed by his saying that he desired to return to General Scott with the decision, and that, as it was late, the decision must be given as soon as possible, since General Scott wished him to return in time to give directions for co-operation. During the council, and for hours after, the rain fell in torrents, whilst the darkness was so intense that one could move only by groping.”
The Pedregal was infested by straggling bands of Mexicans; and yet, over those five miles of desolation, with no guide but the wind, or an occasional flash of lightning, Lee, unaccompanied by a single orderly, made his way to Scott’s headquarters. This perilous adventure was characterised by the Commander-in-Chief as “the greatest feat of physical and moral courage performed by any individual during the entire campaign.”
The night march, although it entailed the passage of a deep ravine, and was so slow that one company in two hours made no more than four hundred yards, was completely successful. The Mexicans, trusting to the strength of their position, and to the presence of the reinforcements, had neglected to guard their left. The lesson of Cerro Gordo had been forgotten. The storming parties, guided by the engineers, Lee, Beauregard, and Gustavus Smith, established themselves, under cover of the darkness, within five hundred paces of the intrenchments, and as the day broke the works were carried at the first rush.
August 20 Seventeen minutes after the signal had been given, the garrison, attacked in front and rear simultaneously, was completely dispersed. 800 Mexicans were captured, and nearly as many killed.[[10]] The reinforcements, unable to intervene, and probably demoralised by this unlooked-for defeat, fell back to the village of Churubusco, and San Antonio was evacuated. The pursuit was hotly pressed. Churubusco was heavily bombarded. For two hours the American batteries played upon the church and hacienda, both strongly fortified, and after a counterstroke had been beaten back a vigorous onslaught, made by the whole line of battle, compelled the enemy to give way. A brilliant charge of General Shields’ brigade dispersed their last reserves, and the whole of the hostile army fled in confusion to the city. The American cavalry followed at speed, using their sabres freely on the panic-stricken masses, and one squadron, not hearing the recall, dashed up to the very gates of the city. Scott’s losses amounted to 1,053, including 76 officers. The Mexican casualties were 3,000 prisoners, and 3,250 killed and wounded. 37 field-guns were abandoned, and, a still more valuable capture, a large supply of ammunition fell into the hands of the victors.
Magruder’s battery, it appears, was retained in reserve throughout the battle of Churubusco, and Jackson’s share in the victory was confined to the engagement of the previous day. But his small charge of three guns had been handled with skill and daring. Magruder was more than satisfied. “In a few moments,” ran his official report, “Lieutenant Jackson, commanding the second section of the battery, who had opened fire upon the enemy’s works from a position on the right, hearing our fire still further in front, advanced in handsome style, and kept up the fire with equal briskness and effect. His conduct was equally conspicuous during the whole day, and I cannot too highly commend him to the Major-General’s favourable consideration.”
The extreme vigour with which the Americans had prosecuted their operations now came to an untimely pause. After his double victory at Contreras and Churubusco, General Scott proposed an armistice. The whole of the Mexican army had been encountered. It had been decisively defeated. Its losses, in men and matériel, had been very heavy. The troops were utterly demoralised. The people were filled with consternation, and a rapid advance would probably have been followed by an immediate peace. But Scott was unwilling to drive his foes to desperation, and he appears to have believed that if they were spared all further humiliation they would accede without further resistance to his demands.
The Mexicans, however, were only playing for time. During the negotiations, in direct defiance of the terms of the armistice, Santa Anna strengthened his fortifications, rallied his scattered army, and prepared once more to confront the invader. Scott’s ultimatum was rejected, and on September 5 hostilities were renewed.
September 8 Three days later the position of Molino del Rey, garrisoned by the choicest of the Mexican troops, was stormed at dawn. But the enemy had benefited by his respite. The fighting was desperate. 800 Americans were killed and wounded before the intrenchments and strong buildings were finally carried; and although the Mexicans again lost 3,000 men, including two generals, their spirit of resistance was not yet wholly crushed.
Driven from their outworks, they had fallen back on a still more formidable line. Behind the Molino del Rey rose the hill of Chapultepec, crowned by the great castle which had been the palace of Montezuma and of the Spanish viceroys, now the military college of the Republic and the strongest of her fortresses. Three miles from the city walls, the stronghold completely barred the line of advance on the San Cosme Gate. Heavy guns mounted on the lofty bastions which encircled the citadel, commanded every road, and the outflanking movements which had hitherto set at nought the walls and parapets of the Mexicans were here impracticable. Still, careful reconnaissance had shown that, with all its difficulties, this was the most favourable approach for the invading army. The gates of Belen and San Antonio were beset by obstacles even more impracticable. The ground over which the troops would advance to storm the fortress was far firmer than elsewhere, there was ample space for the American batteries, and if the hill were taken, the Mexicans, retreating along two narrow causeways, with deep marshes on either hand, might easily be deprived of all opportunity of rallying.
On the night of the 11th four batteries of heavy guns were established within easy range. On the 12th they opened fire; and the next morning the American army, covered by the fire of the artillery, advanced to the assault.