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The Second Conquest Of The Capital Of Mexico
by
The principal lakes visible were Lake Chalco, with the long, narrow lake of Xochimilco near it, and seven miles to the north Lake Tezcuco, near the western shore of which the city of Mexico was visible. Between Chalco and Tezcuco ran the national road, for much of its length a narrow causeway between borders of marsh-land. Near Lake Xochimilco was visible the Acapulco road. Strong works of defence commanded both these highways.
Scott chose the Acapulco road for his route of approach, the national road being commanded by the lofty and strongly fortified hill of El Penon, precipitous on one side, and surrounded by marshes and a deep ditch on the other. The Acapulco road was defended by strongly garrisoned fortresses at Contreras and Churubusco, but seemed more available than the other route. Still farther north and west of the capital was a third approach to it over the road to Toluco, defended by works at Molino del Rey and by the fortified hill of Chapultepec. It was evident that the army under Scott would go through some severe and sanguinary fighting before the city could be reached.
It is not our purpose to describe the various engagements by which this work was accomplished. It must suffice to say that the strong hill fort of Contreras was taken by a surprise, being approached by a road leading to its rear during the night and taken by storm at sunrise, seventeen minutes sufficing for the important victory. The garrison fled in dismay, after losing heavily.
An advance was made the same day on the nearby Mexican works at San Antonio and Churubusco, and with the same result. The garrison at San Antonio, fearful of being cut off by the American movement, evacuated the works and retired upon Churubusco, hotly pursued. The Americans, inspired by success, carried all before them, taking the works at the bridge of Churubusco by an impetuous charge and soon putting the enemy to flight. Meanwhile, General Shields attacked the Mexican reserve, consisting of four thousand infantry and three thousand cavalry, whose line was broken by a bayonet charge.
The whole Mexican force was, by these well-devised movements, forced back in terrible confusion, and was quickly fleeing in panic. The fugitives were cut down by the pursuing Americans, who followed to the immediate defences of the capital, where the pursuit was checked by a heavy fire of grape-shot. Thus in one day the Americans, nine thousand strong, had captured three strong positions, held by three times their number, the Mexicans losing in killed, wounded, and prisoners over six thousand men, while the American loss in killed and wounded was less than a thousand.
Negotiations for peace followed, but they came to nothing, the armistice that had been declared terminating on the 7th of September. The problem that now lay before General Scott was a very different one from that which Cortez had faced in his siege of the city. In his day Mexico was built on an island in the centre of a large lake, which was crossed by a number of causeways, broken at intervals by canals whose bridges could be removed.
During the centuries that succeeded this lake had disappeared, low, marshy lands occupying its site. The city, however, was still reached by causeways, eight in number, raised about six feet above the marsh level. In these ended the five main roads leading to the city. A large canal surrounded the capital, and within its circle were smaller ones, all now filled with water, as this was the rainy season. The problem of bridging these under fire was one of the difficulties that confronted the Americans.
General Scott decided to approach the city by the causeways of San Cosme, Belen, and Tacubaya, which were defended by formidable works, the outermost of which was Molino del Rey, a fortified position at the foot of a slope beyond which a grove of cypresses led to the hill of Chapultepec. It consisted of a number of stone buildings, some of which had been used as a foundry, but which were now converted into fortresses. This place was carried by storm in the early morning of September 8, and the stronger position of Casa de Mata, a quarter of a mile from Chapultepec, was captured by a fierce assault the same day. Only Chapultepec now lay between the Americans and the Mexican capital.